Never heard of top down or 3/4 perspective? Just listen the nonsense spewing from your mouth "Again, what you're asking for is technically impossible." - You, know everyone and I mean everyone said 'God of War' wasn't technically possible on the PSP - they did it and then some.. The PSP is a very powerful handheld, the problems with it are 1, piracy has killed it and 2, developers who didn't bother to take advantages of the PSP hardware - most PSP games are a direct port of the inferior Nintendo DS.
Top-down perspective won't make a PS3/360/PC game suddenly capable of running on something as weak as the PSP. Even suggesting that makes no sense. As for the PSP being a very powerful handheld... no, it's not. It was powerful for a handheld gaming platform
when it came out. It's now one of the weakest handhelds available, and the only reason it seems powerful at all is because the only gaming-focused product to compare it to is the Nintendo DS. Again, it's slightly weaker than the PS2 so expecting them to port a game like Skyrim to it is ludicrous. They could make a separate game and call it Skyrim the way they'd intended to handle things with Oblivion, but that wouldn't be "Skyrim on PSP" so much as "a game with the same name as Skyrim on PSP".
As for God of War, I don't actually remember anyone saying that it wasn't technically possible on the PSP, mainly because... that makes no sense. God of War is a PS2 game. The PSP is slightly less powerful than the PS2. There's no reason to expect that someone couldn't bring some sort of God of War to the system
EDIT: Oh, and since I didn't touch on this:
Hopefully though, all that changes this year - the rumors are flying that Sony will (officially) announce the PSP2 - which if the press reports are true could put the 360 to shame.
So far, the only reports we have are that Sony's been telling licensees that the PSP2 is as powerful as the PS3 (not likely - Sony said similar things about the PSP and PS2, and the reality is that the PSP is actually somewhat weaker but close enough to provide PS2-ish graphics), and that wouldn't "put the 360 to shame" at all.