That would be very difficult. Look at the specs of the SNES; very low, and we don't have it running full speed on every game yet.

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It's not as easy as comparing specs.

The two systems differ so much that emulation is very difficult.

It's like, a while ago, there was a guy that said playing Windows executables on a PSP would be easy, provided they were simple. Wrong.
The emulator needs to allocate a very low amount of memory to the image in question, as only 8-10mb can be used under normal situations; this is a lot less that the image would be allocated on a PC.
The PSP then needs a way to read and understand the code, so that's time consuming. You then need a real-time interpreter to redo all the input from the image, enabling the PSP to understand and put the code to use.
This, understandably uses a lot of CPU and memory, which the PSP seldom has.
The emulator then has to force the image to understand button input that comes from a PSP, difficult, particularly if the origin console has quite a few buttons or triggers.

So, it's a lot harder than just opening, reading, and displaying what's churned out. That's why developers have trouble.
There are so many more elements that complicate the process, it would take hours to list and explain them fully.

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I had my 1st play at the ps3 yesterday and it ROCKS. But back on topic DreamCast emulation would take ALOT of work just to get it in the 20 fps range. But still, that would be pretty awesome playing DreamCast homebrew on a PSP.

hes rite, we hav trouble getting n64 emu running @ full speed, let alone DC...

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