First iRealSMS drops a beta update, and now biteSMS drops an early beta release that brings iOS5 support. The new beta brings a new look for Quick Compose and Quick Reply plus the deep integration with the Apple Notification Centre.
This is a very early beta so expect lots of bugs. Also, do not install unless you’re running on iOS5.
NOTE: you must perform a tethered reboot after install
To get this update, add the following repo to Cydia: http://test-cydia.bitesms.com