I upgraded to .147 yesterday, and although this OS does seem to run faster, I'm noticing this OS wants to drop back to EDGE from 3G a lot. OS .134 would hold 3G for me very well, but this version falls back and doesn't grab on to 3G immediately. When I first power the device up, it goes to EDGE, stays there a minute or so before it goes to 3G. On OS .134 it would go to 3G instantly.