I have already iPhones and iPads, and yes with an S meaning (5 iPads are roaming the house including two iPad 1, two iPad 2 and one iPad 4) as well as five iPhones (two for me, one for Leila, two deactivated as iPods for the kids).
So why the PS Vita?
1) It's a shiny gadget
I cannot buy fancy clothe because I prefer being in jeans so where do you think I will get my guilty pleasures?
2) It runs games that I really enjoy
Back in the days, we spent nights and days playing with our first PS One, then came the PS2, the came the PSP, then were games like Tekken, Ico, Gran Turismo, Little Big Planet, Folklore, Flower, Final Fantasy. All those incredible games that I spent hours on.
3) I like Sony products
Before I became this Apple sheep (not really but let say that's it), Soy was the pinnacle of the electronics. Their TV were the best, their laptops were the best, their walkman and other CD Players were the best. Sony was the numero uno.
So what do I don't like?
1) BrowserTerrible, terrible experience. It reloads the page multiple times before you can even use it. You can not post on some of Sony own forums with it. That's how bad it is.
2) Annoying Noises
I hate those bling, cling, wizz that you get when you start something or close something. I looked every where you cannot not get this thing to shut the f*#k up
3) Application X will be closed if you continue
WTF? It's a Linux system (as the PS3). Why should it stop anything? Don't you have a swap or a temp directory somewhere to dump the memcopy of the thing and be happy? I want to sue as many apps at the same time as possible. It's 2012 and soon 2013 remember?
So what I really like
1) The interfaceOpening, swapping, gliding, is just done right
2) the touch surfaces
Not only the screen but also the back. Some application do use it (Facebook) some don't(Live tweet) but most games for the Vista do.
3) The quality
The AMOLED screen, the buttons, the pieces together, even if in plastic, just feel well done. Not too cheap, not too expensive.
4) The cloud
Sony services will improve (too many interruptions while downloading a game) but the PS Vita with only subscription to the storage, the games and the unlimited music IS REALLY a great mobile device.