diff --git a/debian/changelog b/debian/changelog
index 026006e6..eaedea7a 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -17,6 +17,16 @@ byobu (4.30) unreleased; urgency=low
       helper
     - add a PCT constant, required to support both screen and tmux
     - fix a bug/typo in shutil (should be /proc/uptime)
+  * usr/bin/byobu-status-tmux, usr/lib/byobu/.constants,
+    usr/share/byobu/profiles/common, usr/share/byobu/profiles/tmux,
+    usr/share/byobu/status/1, usr/share/byobu/status/2,
+    usr/share/byobu/status/3, usr/share/byobu/status/4,
+    usr/share/byobu/status/Makefile.am, usr/share/byobu/status/status:
+    - separate status cache between screen and tmux (different formatting)
+    - make byobu-status-tmux support screen
+    - PCT="%%" for both
+    - update backticks and caption/hardstatus
+    - fix default status
 
  -- Dustin Kirkland <kirkland@ubuntu.com>  Thu, 11 Aug 2011 10:31:31 -0500
 
diff --git a/usr/bin/byobu-status-tmux b/usr/bin/byobu-status-tmux
index d1a9d8fc..6a55b2e5 100755
--- a/usr/bin/byobu-status-tmux
+++ b/usr/bin/byobu-status-tmux
@@ -26,10 +26,10 @@ PKG="byobu"
 [ -f "$BYOBU_CONFIG_DIR/status.disable" ] && exit 0
 
 # Clean and create cache directories
-mkdir -p "$BYOBU_RUN_DIR/status" "$BYOBU_RUN_DIR/.last"
+mkdir -p "$BYOBU_RUN_DIR/status.$BYOBU_BACKEND" "$BYOBU_RUN_DIR/.last.$BYOBU_BACKEND"
 
 # Source configurations
-for i in "${BYOBU_PREFIX}/share/$PKG/status/statusrc" "$BYOBU_CONFIG_DIR/statusrc"; do
+for i in "${BYOBU_PREFIX}/share/$PKG/status/status" "${BYOBU_PREFIX}/share/$PKG/status/statusrc" "$BYOBU_CONFIG_DIR/status" "$BYOBU_CONFIG_DIR/statusrc" "$BYOBU_CONFIG_DIR/color"; do
 	[ -r "$i" ] && . "$i"
 done
 
@@ -37,8 +37,8 @@ done
 get_now; NOW=${_RET}
 
 get_status() {
-	local cachepath="$BYOBU_RUN_DIR/status/$1"
-	local lastpath="$BYOBU_RUN_DIR/.last/$1"
+	local cachepath="$BYOBU_RUN_DIR/status.$BYOBU_BACKEND/$1"
+	local lastpath="$BYOBU_RUN_DIR/.last.$BYOBU_BACKEND/$1"
 	local lastrun
 	[ -r "$lastpath" ] && read lastrun < "$lastpath" || lastrun=0
 	status_freq "$1"
@@ -53,17 +53,11 @@ get_status() {
 }
 
 case "$1" in
-	left)
-		IFS= read items < "$BYOBU_CONFIG_DIR/status.tmux.left"
+	*left|*right)
+		eval items="\$$1"
 		for i in $items; do
+			case "$i" in \#*) continue ;; esac
 			get_status "$i"
 		done
 	;;
-	right)
-		IFS= read items < "$BYOBU_CONFIG_DIR/status.tmux.right"
-		for i in $items; do
-			get_status "$i"
-		done
-
-	;;
 esac
diff --git a/usr/lib/byobu/.constants b/usr/lib/byobu/.constants
index 7caeaabd..21ac207c 100755
--- a/usr/lib/byobu/.constants
+++ b/usr/lib/byobu/.constants
@@ -42,6 +42,7 @@ else
 	ICON_TRASH="T"
 	ICON_WIFI=
 fi
+PCT="%%"
 
 # Support two different backends (screen/tmux)
 if [ -z "$BYOBU_BACKEND" ]; then
@@ -53,13 +54,11 @@ case "$BYOBU_BACKEND" in
 		export BYOBU_BACKEND
 		BYOBU_ARG_VERSION="-V"
 		ESC=
-		PCT="%%"
 	;;
 	*)
 		export BYOBU_BACKEND="screen"
 		BYOBU_ARG_VERSION="-v"
 		ESC="\005"
-		PCT="%"
 	;;
 esac
 
diff --git a/usr/share/byobu/profiles/common b/usr/share/byobu/profiles/common
index 06878022..f3dec537 100644
--- a/usr/share/byobu/profiles/common
+++ b/usr/share/byobu/profiles/common
@@ -79,6 +79,11 @@ backtick 135 	59	59		byobu-status raid
 backtick 136 	19	19		byobu-status swap
 backtick 137 	23	23		byobu-status time_binary
 
+backtick 1001 	9999999	9999999		byobu-status-tmux screen_upper_left
+backtick 1002 	127	127		byobu-status-tmux screen_upper_right
+backtick 1003 	599	599		byobu-status-tmux screen_lower_left
+backtick 1004 	2	2		byobu-status-tmux screen_lower_right
+
 hardstatus alwayslastline
 
 # The following line would turn off alternate Screen switching in xterms,
@@ -111,10 +116,10 @@ fit
 setenv SSH_AUTH_SOCK $BYOBU_CONFIG_DIR/.ssh-agent
 
 # Window tabs, second to last line
-caption always "%12`%?%-Lw%50L>%?%{=r}%n*%f %t%?(%u)%?%{-}%12`%?%+Lw%?%11` %=%12`%110`%109`%122`%111`%10`%<"
+caption always "%1001`%?%-Lw%50L>%?%{=r}%n*%f %t%?(%u)%?%{-}%12`%?%+Lw%?%11` %=%12`%1002`%10`%<"
 
 # Status string, last line
-hardstatus string '%99`%{-}%{=r}%12` %100`%112`%=%117`%133`%130`%135`%102`%101`%129`%131`%127`%114`%115`%108`%134`%128`%125`%126`%113`%119`%116`%106`%104`%103`%105`%107`%136`%123`%137`%132`%120`%121`'
+hardstatus string '%1003`%=%1004`'
 
 # NOTE: Older version of Screen have an arbitrary limit of only being able
 # to change colors 16 times in this 'hardstatus string'.
diff --git a/usr/share/byobu/profiles/tmux b/usr/share/byobu/profiles/tmux
index cd4981cd..371db7ac 100644
--- a/usr/share/byobu/profiles/tmux
+++ b/usr/share/byobu/profiles/tmux
@@ -79,7 +79,7 @@ set -g status-fg white
 set -g status-interval 1
 set -g status-left-length 256
 set -g status-right-length 256
-set -g status-left '#(byobu-status-tmux left)['
-set -g status-right ']#(byobu-status-tmux right)#[default]%Y-%m-%d %H:%M:%S'
+set -g status-left '#(byobu-status-tmux tmux_left)['
+set -g status-right ']#(byobu-status-tmux tmux_right)#[default]%Y-%m-%d %H:%M:%S'
 set -g message-bg magenta
 set -g message-fg white
diff --git a/usr/share/byobu/status/1 b/usr/share/byobu/status/1
deleted file mode 100644
index 9821353b..00000000
--- a/usr/share/byobu/status/1
+++ /dev/null
@@ -1 +0,0 @@
-color
diff --git a/usr/share/byobu/status/2 b/usr/share/byobu/status/2
deleted file mode 100644
index cc48a25c..00000000
--- a/usr/share/byobu/status/2
+++ /dev/null
@@ -1,4 +0,0 @@
-whoami
-hostname
-ip_address
-menu
diff --git a/usr/share/byobu/status/3 b/usr/share/byobu/status/3
deleted file mode 100644
index 4eb787f7..00000000
--- a/usr/share/byobu/status/3
+++ /dev/null
@@ -1,4 +0,0 @@
-color
-logo
-release
-arch
diff --git a/usr/share/byobu/status/4 b/usr/share/byobu/status/4
deleted file mode 100644
index 7c399266..00000000
--- a/usr/share/byobu/status/4
+++ /dev/null
@@ -1,29 +0,0 @@
-network
-disk_io
-custom
-raid
-reboot_required
-updates_available
-apport
-services
-mail
-users
-uptime
-ec2_cost
-rcs_cost
-fan_speed
-cpu_temp
-battery
-wifi_quality
-processes
-load_average
-cpu_count
-cpu_freq
-mem_available
-mem_used
-swap
-disk
-time_binary
-time_utc
-date
-time
diff --git a/usr/share/byobu/status/Makefile.am b/usr/share/byobu/status/Makefile.am
index a346cd3a..91f41595 100644
--- a/usr/share/byobu/status/Makefile.am
+++ b/usr/share/byobu/status/Makefile.am
@@ -1,2 +1,2 @@
 statusdir = $(datadir)/@PACKAGE@/status
-status_DATA = 1 2 3 4 status statusrc
+status_DATA = status statusrc
diff --git a/usr/share/byobu/status/status b/usr/share/byobu/status/status
index ec7a2aa2..d83d30b3 100644
--- a/usr/share/byobu/status/status
+++ b/usr/share/byobu/status/status
@@ -20,41 +20,12 @@
 #    You should have received a copy of the GNU General Public License
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-apport=0
-arch=0
-battery=1
-color=1
-cpu_count=1
-cpu_freq=1
-cpu_temp=0
-custom=1
-date=1
-disk=0
-disk_io=0
-ec2_cost=0
-fan_speed=0
-hostname=1
-ip_address=1
-load_average=1
-logo=1
-mail=0
-mem_available=1
-mem_used=1
-menu=1
-network=1
-notify_osd=0
-processes=0
-raid=1
-rcs_cost=0
-reboot_required=1
-release=1
-services=1
-swap=0
-time=1
-time_binary=0
-time_utc=0
-users=1
-updates_available=1
-uptime=1
-whoami=1
-wifi_quality=1
+# Screen has two status lines, with 4 quadrants for status
+screen_upper_left="color"
+screen_upper_right="color whoami hostname ip_address menu"
+screen_lower_left="color logo release #arch"
+screen_lower_right="color network #disk_io custom raid reboot_required updates_available #apport #services #mail users uptime #ec2_cost #rcs_cost #fan_speed #cpu_temp battery wifi_quality #processes load_average cpu_count cpu_freq mem_available mem_used #swap #disk #time_utc date time"
+
+# Tmux has one status line, with 2 halves for status
+tmux_left="logo release #arch"
+tmux_right="network #disk_io custom raid reboot_required updates_available #apport #services #mail users uptime #ec2_cost #rcs_cost #fan_speed #cpu_temp battery wifi_quality #processes load_average cpu_count cpu_freq mem_available mem_used #swap #disk #whoami #hostname #ip_address #time_utc date time"