The PlayStation Vita just got moderately more useful. A suite of apps is available today on the PlayStation Store including Flickr, Netflix, and "LiveTweet." That's the name of the Twitter app. No, we don't know why.If you're a new Vita owner, you can get them all right now through the PlayStation Store. If you're a prospective Vita owner just waiting to see how the Netflix app shook out, you can see for yourself in this walkthrough from Engadget.