Just got an e-mail from the Lab stating they were ending development on the mobile viewer and heading in a new direction to be announced soon. Testflight and the mobile regions will be closed October 29.
Hiya!
It's like we said in the message: We've decided to pause development on this branch, but we are working on a new direction for mobile, and think it will be exciting news. This Linden, for one, is really looking forward to being able to talk about it.