Overclock results question

for angry birds it should do put simply, the phone has enough RAM (512mb), but you would need to be able to OC to at least 800mhz from its stock 600mhz, even then there may be a few less siginificant running issues.
As for the playstation emulator psx4droid, there is speculation that the minimum requirements for that is a 1ghz processor, but the only real way of knowing is testing it.