Hi,
well I know both programs by frequently using them on the "evil" platform.
While I think it is more important to have ProjectX than Mpeg2Schnitt ported (and there's some things I find "sloppy" from usage point of view about M2S anyway) I can't tell if having ported ProjectX is equal to having ported M2S.
Frankly, if the bounty says "...or any program to cut video files", then I would agree to pay the bounty.
If the bounty however says "porting Mpeg2Schnitt or create a similar program", then I woudl say "nope".
M2S has some things that make it superior to ProjectX from a users viewpoint. Let me only mention "setting cutmarks" - that should explain one major difference.

From a
very high-level point of view however, yes - they are similar.
But: I am not a sponsor in this bounty. They must decide.
In case noone of them answers, there is still the bounty committee, right?
Cheers,
Thomas