Was putting off the update in hopes of finding more info on it first... but, I went ahead this evening and my 4G speeds have increased significantly..
At home, with a "fair" connection according to the 4G settings screen, I was getting around 2000kbps, sometimes it would spike up to 3000kbps.
After update, same location in my house, same "fair" connection, but speeds are now consistently in the 9000kbps range down and ~1400kbps up.
Just thought I'd throw that out there, for those still wondering... Also, my GPS widget seems to still be working (I noticed some people saying that it was broken with the update). Atleast, I *think* the GPS widget is working.. it does seem to be clicking ON and OFF a *LOT* faster than before, but the GPS indicator on the top of the screen also switches, so I think it's working fine.
Haven't noticed any other changes, but haven't poked around much either.. -Bob