One thing that i just Wish would become the standard Next gen would be for all titles to be locked in at 60 frames per second. Why? Well aside from 60fps looking miles better than 30, it's displayed properly on HDTV's. However if you pop any 30fps game in and fire it up, you'll end up getting a nasty motion effect. When panning the camera around or usually just anything, the environment begins to slightly double. It's more evident on plasma, where as LCD's blur even more yet they kind of hide the effect and instead things look a bit smeary. since plasma's boast superior motion that ugly doubleing effect reveals it's self a lot more and it's pretty botched looking.
Nintendo's Wii games however are usually 60fps all the time. It's usually 3rd party devlopers who are trying to push the graphics and detail get locked down to 30fps like Resident Evil for example.
I was toying around with Pikmin NPC the other day for the wii on both my LCD and plasma, and while the brightness, progressive scan and vivid colors were a step up on my LCD, the motion handeling was a giant downgrade. If it were running at 60fps I'd have no real problem, but 30fps kind of butchers the motion. Smearyness in full force! 
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