Unless the X1000 and SAM460 boards inspire more development and additions to the Hyperion OS4 Team, I think the continuing development of OS4 is on shaky ground.
My choice of Next Gen AmigaOS, MorphOS, is not on much better ground and could cease to be developed at any time, if the MorphOS Development Team started to fall apart and lose interest. I hope, and don't think that this is about to happen, but could happen in the not too distant future, if they decide that it is too much work and not worth the effort to finally move to a different architecture AND there is no reasonable new PPC hardware to port to in the near future. Edit: By near future, I mean the next few years. The MorphOS Dev. Team has plenty of work to do on the existing ports of MorphOS2.x on G4 hardware and might decide to go forward with porting to the G5 PowerMacs and maybe the G5 iMac's too, so they have plenty of work to do for at least a couple of years before they start running out of improvements for the G4 & G5 and need to make a decision about which CPU to port to next, or if they want to stop development and do something different. There is also a chance that a fast, new PPC CPU will be created within the next couple of years for the embedded market that is fast enough and cheap enough to make porting MorphOS to it a worthwhile effort. End Edit:
Since this thread is supposed to be about the OS for the X1000, I wonder if the AROS Team will consider porting AROS to the X1000? AROS has a higher probability to survive into the future than any of the other Next Gen choices, because it is Open Source and already runs on a wider range of hardware than any of the other choices.
It will be interesting to see what happens when one, or both of the current Amiga PPC OSes stops development, where the existing users will go. Will they switch to the other remaining PPC alternative, or will they finally switch to AROS? Or possibly they will give up on Next Gen Amiga OSes and revert to enjoying Classic AmigaOS3.x and earlier versions, just for fun and forget about using any kind of Amiga experience for anything except playing and writing code for 68k games, which they can enjoy on their modern PC's with WinUAE, or EUAE, or on their antique 68k Classic Amiga hardware if it is still running.