Now that I've used .348 for a few weeks on my 8900, I notice a few more glitches. There are still unexpected resets. Sometimes--and this seems very odd--resets get stuck. That is, the progress bar gets stuck at about 2/3 of the way through and I have to reset in order to restart the reset. A few times, the reset goes all the way through, but then I have a persistent clock/wait icon on the screen, and although I can use the 8900, it's very very laggy...and needs a reset! I see this weird reset behavior (sometimes) whether I do a battery pull or use alt-shift-del.
I also note that streaming video from m.youtube.com is a lot more erratic than before. Sometimes it works; sometimes not.