STUser : the Pegasos / AmigaOne have nothing to do with the original Amiga. BUT MorphOS / AmigaOS 4 are AmigaOS compatible (MOS is compatible with 68k, PowerUP, WarpUP & MorphOS executables), as long as you use programs which don't try to access the original amiga hardware directly. That is to say, programs that can use AHI for the sound, a GFX card.
AmigaOS4 or the MorphOS A/Box really work the same way as AmigaOS, with many enhancements of course, and designed to run on up to date & standard hardware.
So, we're still on amiga
On my pegasos (Morphos) I use : amirc, ibrowse, simplemail, amitradercenter, jabberwocky, aminetradio, mplayer, fxpaint, imagefx, mysticview, earth 2140, wipeout2097, mame, golded, ... Some natively MorphOS compiled, some transparently 68k/PUP/WOS emulated. All at a great speed with a great comfort
(however, it's difficult to make a choice now for potential new users, as the Pegasos II is currently being manufactured so not ready yet (pre-order), the pegasos I being sold out, and as there's also AmigaOS4 which looks interesting but not ready either
