bozack-
"And the revision is more than a speed difference it is also power."
No, there are no differences between power supplied to an AGP 1.0 or 2.0 slot unless it is AGP Pro.
There are however, plenty of motherboards out that don't supply enough power to the AGP slot(Socket/Super7 boards are notorious for this), then you would have problems with a GF DDR, though no board should have any problem whatsoever powering the GF2 MX, it uses significantly less power then most graphics boards(should be a mobile GF2 MX announced at COMDEX).