This is more an informational thread, but for anyone out there who may have a Stage Kit, the kit doesn't work with RB3 currently.  My understanding from the RB forums is that HMX said that the kit WOULD work with RB3, but since that doesn't seem to be the case, we're all just hoping for a patch.

Well that's too bad.  :( 
 
If they said it would work though, then I'm sure they must be working on a patch.

Yeah, I'm definitely disappointed.  My one concern is that from what I've read on the forums they were supposed to have patched it for RB:GD, but never did so.  And we even just found a video last night on how to hook up two stage kits as one, and it looked pretty damn awesome.