I consider the AmigaOne to be a true Amiga once the OS4 runs nativly on it's chips. I consider the Pegasos to be nothing more than an Amiga emulator running on PPC with it's own compatible OS.
It's a bit like asking if ppl consider PowerMac to be a true Mac, only with the difference that it's a huge step for the Amiga due to *include full Amiga history here*.
But nice of you to start yet another Ami vs Peg thread, we sure need those. :-P