There was a D&D convention this weekend called D&D Experience.
WoTC began to release some interesting info related to 4E:
Quick Rules Primer
They also ran a bunch of preview sessions at the con. Those resulted in a lot of interesting but sketchy info as players tried to sort out what they were seeing and playing.
I might try to start my 4E online character sheet similar to my 3.5E sheet based on the sample characters, but I kind of doubt it. After studying the sample characters a little bit, I realized that the sheets were fairly specialized. They include a bunch of info specifically because the rules aren't out yet. So I doubt they will be very indicative of the official sheet.
So far I am pleased with a lot of the fixes in the Quick Rules Primer, #9 and #12 seem like they should go a long way toward fixing the broken relationship between Reach and Movement.
I am still waiting to see if they improve bonus stacking.