This shows how cheap I am, but does anyone know an iOS app to get free (or at least cheap) current VFR charts on the iPad? Is there a cheaper option than the paper charts? http://skyvector.com/ is sweet, but not official or always available. Love Foreflight, but don't really like $150/yr. Also, downloading all relevant data before would help as I'm also to cheap to buy a data plan just for the ipad. Thoughts?