One of the great features of the iPad is its ability to function as a digital sheet music library. If you've never seen sheet music on the iPad, take a minute to check out Gizmodo's article: iPad is Perfect for Sheet Music
There are a number of ways to get sheet music on your iPad:
1. Download PDF versions of your sheet music and then use an app such as GoodReader or Books to sync them with your iPad. All of the violin music for download on TheViolinSite.com is in PDF format and is iPad compatible.
2. Download music from MusicNotes and then use their free sheet music reader