First: I didn't expect Pandora to be able to emulate Gamecube after some research and I even stated that before. GC's main processor is very fast, nearly as fast as Pandora, and if you add other bits and bobs that make GC run, it'll most probably overwhelm our little black box. But, emulating Dreamcast is possible - and going from that point, I was curious if emulating marginally faster PS2 and PSP was possible too. The answer "It's possible, but hard to do properly" was enough - as opposed to four "BAWWWW UNPOSSIBLE!" answers before it. Same goes for the explanations about RISC processors - some folks (Moxie and WizardStan) at least had enough patience to point me in the right direction.
And then, in a bit of trolling, I dropped a question about emulating the woefully underpowered Nintendo DS. I expected all sorts of explanations and excuses regarding the dual screen/touch screen feature, but when I read "meeeeh, pandora too slow, unpossible to do dat", I blew a fuse.
Also, for those who couldn't bother to read two previous pages:
Me: "Okay, maybe GC emulation would be a wee bit problematic, considering the lovely "CPU: The fastest you can find." remark in the list of requirements for Dolphin."
Me: "if we lug the functions of all that WTF hardware onto main processor, emulating the Gamecube may end up using all the Pandora's power if not needing more than it can provide."
And here's where I understood that GC is too much for Pandora.
Me: "I'm guessing that emulating PS2 would be very hard if not impossible due to EE being a 64-bit processor (you can't squeeze a 64-bit instruction through a 32-bit processor like ARM... I think)"
Hedwards: "You can do it, just not without a huge amount of horse power. Horsepower which the Pandora lacks."
Me: "As for the required horsepower, I'm suspecting that with the current capabilities, Pandora would be able to emulate the functions of EE, but as WizardStan said, there's still the rest of the stuff to be emulated which might overpower our little black box."
Here I started doubting in the emulation of PS2. After sleeping with the problem and concluding that translating 64-bit PS2 instructions to a 32-bit Pandora processor would eat up a lot of resources (and that's only the main processor!), I kinda gave up on this one completely - too bad, it's a popular platform.
WizardStan: "Despite what others have said, PSP is looking like it could be very viable in the distant future. I seem to recall JayFoxRox posting some very promising results with his (very very alpha) emulator."
That one gave me some hope - at least PSP would be possible to emulate (32-bit architecture, half as powerful, probably enough overhead to make it run smoothly with proper optimization).