I emailed HTC last week with these questions, thought I would post up the replies if anyone else wants to know... 1) Is this safe to use 3rd party extended batteries and will it make a difference to the capacity (it's 1600mAh)? Also, are HTC going to release an official extended battery in the near future? 2) When will the copy protection issue with Google get sorted out? 3) Are you going to release a version of HTC Sync for the Mac operating system? The Response was... No plans to support OS X??? That's annoying. Missing sync it is then!