We recommended Gravity Rushpretty enthusiastically. But we understand that not everyone has had a chance to play it, due to unfortunate factors like not owning it, and not owning a Vita to play it on.
That's where Amazon comes in. Through August 4, any purchase of a Vita will qualify the buyer for a free copy of Gravity Rush. Amazon is also throwing in a screen cover, which you'd want anyway to keep the dangers of the world from reaching that precious screen.