Need I say it? Zelda OoT for DS.
Sure it's been remade 10,000 times but a portable version would be great, any Zelda game would go well with the touch screen (navigating the inventory etc.) since LttP was already done for GBA, OoT, the next best Zelda game should be up next.
Ports are fine, as long as their re-releasing an old, classic game such as one for the SNES or N64 and especially if it's for a portable system, however it seems a little early to port GC, PS2, or X-box games in my opinion [coughs]PSP.