Yeah, the MorphOS development team has pretty much ruled out support for Acube hardware, but I wouldn't mind it either.
And the neat thing about the 460 (as opposed to the 400) is that you can use modern video cardss on it.
A Radeon HD 4650 or 4670 should work with the same drivers used on the X1000.
It is sad they don`t wan`t to be avail for avail new HW (it would be much better representation to the world even with high price of SAMs, but 440 can now replace Efika as low end and 460 could be about Peg2 with PCI-E and SATA2). Some licences would be bought, and more importantly, possibility for OS4 crowd to test and maybe even recompile, create for MorphOS.
PCIE bus is the major advancement of SAM 460 surely.
But when compared in expandability (USB, PCI ...) as well as in board pecularities of having awful integrated everything, X1000 is my choice. Hopefully, board will be fully supported and OS 4.2 out by the time I save $3000 + P&P + import fees ... in a country with 500$ average salary.