You ask a question.  Somebody smarter than me will answer them.  Personally, I have a few questions:

1.  How do I set a background pic for anything other than the home screen?  I saw a video of a guy online playing with his Vita and every page had different art--some of it from Nintendo franchises.  I want cool backgrounds on every page of my Vita, too!

2.  Which video formats does the Vita support?  I'm downloading a few movies from the net to put on my Vita.  Am I going to have to convert them for them to play on my PSV (like I did with the PSP) or can it play more formats, now?

3.  Playstation 1 game support.  Anybody know if we're going to get that?  I want to ditch my PSP but I have quite a few PS1 games on it.  Also, despite what IGN said, there's about eight of my 20 PSP downloaded titles that won't transfer to the PSV.  Any word on an update?

4.  Is there any way to enable traditional controls?  I like using the touch screen but I'd like to toggle between touch screen and d-pad on a whim.  Any option for this?

Thanks for any answers.  Feel free to ask if you have any Vita questions, too.  We'll work together to get the most out of Sony's portable powerhouse.

PS1 games are currently not playable because they don't know why it's refusing to play it but expect a patch soon

A) yes it's awesome
B) no i haven't opened my yet so i don't know what i'm talking about
C) every list needs at least 3 items

IGN has a wallpaper section on there site: http://ign.com/wikis/ps-vita/PS_Vita_Wallpapers
They have some great 544p Pictures there

"Additionally, you can visit this page from your PS Vita browser and save images directly. Just tap the thumbnails below to open the fullsize version and tap and hold it to save to your photo library."

"The PS Vita's display can be customized to display images for each panel of apps and games, as well as the lock screen. To change your wallpaper settings, just tap any icon and hold until the edit menu appears. In the lower right corner you'll find the wallpaper icon. From here you'll find both images from your photo library and Sony's preset wallpapers."

Source: http://ign.com/wikis/ps-vita/PS_Vita_Wallpapers

Edit: Also PS1 Classics are comming

"Shortly After Launch" - Playstation EU

Thanks, Chevinator123! Awesome stuff!
I'm very interested in point 2 too.

Can't answer 1 and 3, sorry.
As for question 2, Vita only supports MP4 (and H.264, but nobody cares about that), so just convert your videos to MP4 if needed. You can find free MP4 converters with a quick google :)