yup, i saw and handled the Ohm at the kickoff. my first thought was "beefier Amp." it has two external stays which are probably carbon fiber but i forgot to ask Brian about them when we were talking. of course i've already forgotten the cubic inches, but Brian told me the pack will be up on his site in a week or so.
umm, what else .. it has a more substantial hipbelt with pockets, it uses the same thin cord in place of webbing adjustments fro the shoulder straps, looked like it had the same Variable Compression System as the Amp, plus it was being shown with that same add-on front pocket that can be ordered for the Amp. it looked really good.