Nice first post, why would you want to do that.
1: For the same quality the screen would have to show in the same size.
2: If you wanted it to fill your Monitor screen it would just stretch it and the picture would be terrible.
3: The PSP letters stand for Play Station Portable, take big notice of the portable bit on the end.
4: What is the ps2 for, considering most psp games are just downsized PS2 games anyway.
And to answer your question no it cant be done at the moment.
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