To be honest, I think it's just QJ trying to rack up useless buzz around the place.  You know about a third of their posts are *cough* at best...
Besides, they've hosted BIOS type files before, though it may not be so obvious to you guys (QJ's piracy policy is stupid too lolz).

Fact: a PC DS emulator sucks - the chances that one for the PSP would come out before a good PC emulator is highly unlikely
I think the PSP does have enough power to emulate a DS with perhaps some playable games, but IMO, full speed would be impossible.
Even if someone managed to make a highly optimized version of the current PC DS emulator for the PSP, it won't be playable for a very long time.