Yes definitely!
No you can not play the PS Vita games on a PSP.
Yes, the PS Vita's games are region free. A Japanese PS Vita will play an EU game.
You should buy a PS Vita if you want to play PS Vita games.
You don't have to pay for online gaming, unlike the PS4 - you don't need PS+ to be able to play it online.
No it can not. The PS Vita can not play the Black Ops game. The PS Vita plays PSP and PS vita games not PS3 games
No, you will not need to purchase a PlayStation Plus membership to play online with the PS Vita.
only if you have a ps vita
yes
No because Call of Duty Black Ops does not have a PSP or PS vita game version. You will not be able to play any PS3 games on the PS Vita
A PS Vita is a physical thing, a game console, it can't be downloaded. No Android device is powerful enough to play a PS Vita game.
Yes
No you can not