Not sure why everyone is having so much problems, I installed it on my BB 9700, and not one problem, guess i got lucky.
- wifi/UMA works Perfectly ( after sometime playing with router)
- Blue tooth works fine (connects to tom tom GPS for hands free calling fine)
- Battery Life if same as before
- No media errors
***only bad thing with this version OS is some Apps wont work with this version OS*** small price to pay for having working UMA service