I picked up a Galaxy Tab a few days ago with the intention of using it for Android development.
It should happen but I won't make any promises about release dates just yet.
"adding wireless problems" - If you're concerned about this, you can use the AC-7 Core wired instead.
It needs a few extra bits and pieces though... The connection goes:
iPad -> iPad Camera Connection Kit (USB) -> USB to MIDI cable (M-Audio Uno or Cakewalk UM-1G for example) -> spare MIDI In and Out on your system
It then functions the same as a hardware unit with no wifi latency etc.