In my opinion there has been one legitimate gripe about using the Macintosh operating system, and that is the software availability issue. My real estate office is forced to use PC's just because our Real Estate software is PC only (VirtualPC is NOT a practical option). I'm sure there are many businesses out there that are in the same situation.
If the move to Intel processors brings about window's software compatibility, then bring on the Intellimacs. I'll buy about 10 of them right away.