Well- Sun4u is still in production, and it doesn't have any "first" cachets like the Ultra1, E10k, etc. so I sort of see where Jay's going. Older Sun4 machines (4m 4d 4c -4) would probably be ontopic, though. SGI 4Ds (loosest definition, all MIPS based machines rather than the strict definition of from the 4D/60 to the introduction of ARCS PROMs) are probably fair game now, given that the line has been discontinued effective Dec 31. Newish Alphas and HP-9000s are probably a bit shady, though, since they're still in (semi) production, but not pushed, so they could be on.