Two iPhone version here: [link] [link]
I'm not gonna lie. I love how this looks, only took like 5 mins to make with stuff I already had too.
Used a source vector from BlackGryph0n for the Cutie Mark starting point. [link]
UPDATE: I've redone this paper, and I think it looks a bit better. I'm now using a cutie mark vector from noxwyll: [link]
I added some shadow and glow effects. The first vector had some rough edges that were bothering me. This one looks much cleaner.