i don't know about disappointment..
but, it NEEDS HD support and there is NO reason it shouldn't have it. It has the hardware to will support it (goforce3)
hell, i saw it 2 year ago at E3 running on a p2 and a geforce2 --- 1280x1024.
and unlike old psx games.. there is nothing to lock it into one mode over another (like background) 3d is 3d and all it needs is what rez u want it to render.
forget split screen action.... can't really see what is going on.
I'll finish the damn game.. because it is the only reason i got the damn xbox (but thinking it was high rez)..
nothig was in HD... doa3, odd world, halo.. nothing/...