I've already got the app. It's awesome guys. I will say though I hope the app store search allows you just to search 'vine' because I had to search 'vine made' to get the app to show.
<a href="http://vine.co/blog" rel="nofollow">http://vine.co/blog</a> says "Today we're launching Vine... Vine has been acquired by Twitter." So that was fast.