Cross posting, as I originally threw this into the wrong Android thread:
I've been playing with the
Aviate Alpha as my new default Launcher and I have to say, it's absolutely amazing.
Firstly, it really just "works". Everywhere I go, it slightly reconfigures itself to display appropriate contextual information. Especially handy is the time of day / location app grouping, so it throws navigation and news apps in my face in the morning, and music and productivity apps at me when it figures out I'm at work.
It also looks really gorgeous and actually offers something new without apparently falling into the "shameless ripoff of other Phone OS" category of launchers.