iOSiOS The operating system used on iPhones and iPads.: Version 3.9.1 submitted to Apple Friday for review. This fixes three major bugs including the time of a post changing upon editing.
iOS: Work will be starting on 3.9.2 this week. This is a follow up bug fix release for less pressing issues not included in 3.9.1.
Android: Version 2.6.1 addresses some crashes detected in 2.6 and will likely be released toward the end of this week or early next week. Translation is the primary hold up right now.
Other platforms: Officially the other platforms (Windows Phone 8, Blackberry, etc) are on hiatus.
GSoC: Three potential mobile projects submitted and a couple of mobile contributors are listed as mentors.