I’ve spend 3 sessions on the 2010 Rise kites (both the 9m and the 14m).
I really have to admit that they are a significant improvement over 2009, much more so than I was expecting.
The feel about the same on the low end, and they seemed to have picked up a bit on the high end. I was easily able to switch back and forth between a 9m and a 14m in the same winds and feel comfortable on both.
Biggest Changes:
1.) Kite is rock solid in the air. It feels much better than the 09. No distorsion or jellyfishing.
2.) Kite flies back up through the window much better, you don’t need to sheet out to get it to fly fast back up.
3.) Kite feels more predictable in the air. This might be due to the fact the kite felt a bit slower than the 09’s to me, but it felt right even with the kite a bit slower.
4.) Great float/hangtime on the kites. I threw a big boosted back roll first tack and i had finished my rotation and I was still going up, kite floated me down after some serious time in the air. Potential downside, you loose more distance downwind with and extra few second of air time 
5.) Bar is just the tits.
Some photos: http://www.masskite.com/2010 Ocean Rodeo Rise 9m/