A couple of interesting things people might like to know:
1) ADW Notifier :
ADWNotifier - Android app on AppBrain
Adds the ability for unread counts on virtiually any APP, but in particular Missed calls, SMS, Gmail, E-Mail, etc. Even works with icon in launcher bar. This is a feature that Launcher Pro has had over ADW for a while.
2) HomeSmack:
[APP] HomeSmack - Change double-tap Home and Long-search - xda-developers
Mostly adds some options to people still on Blur, but one cool thing is that it adds back the 'Double Tap Home' option and allows you to set it to ANY app, not just the system ones as allowed by Blur.