Just updated to 4.1.1 on my Verizon Galaxy S3 32GB....
1. The battery does appear to run out quicker. I am noticing and have a 4000mah battery, so cringe at the thought of stock size.
Haven't really tracked this one way or the other.
2. The radio seems no better or worse
Mine seems to be *much* better, at least as far as About device Status reports:
Before: -119 dBm
After: -91 dBm
3. I am not seeing it any faster or slower
Anecdotally seems faster to me..
4. Foxfi issue blows.
Sucks that the previous 'free' version was disabled, but at least the new one still seems to work on my 4.1.1 on my Verizon Galaxy S3 32GB as a WIFI hot spot. Just need to convince myself that it isn't a aberration before I buy the full version.
Even if it does work, the Foxfi folks really need to be taken to task for how they handled things