If you are looking for Christian rock to be streamed with no commercials to your iPhone, then this is one great app. It does require you to have a 3G Edge, or Wi-Fi network to stream the music. While it streams in a shuffle mode, it does allow you to skip songs.
This is the iPhone/iPad app from the Northern Oklahoma radio station KJTH. It streams the radio station that mostly plays contemporary Christian music. It features an HD-2 signal, and it is commercial free.
If you like IMDB.com and wish there was one for your Christian bands, this is the application for you. This database lists information on your favorite Christian music artists, the music you love, and it even has over 57,000 lyrics for those tricky songs you just can figure out. There are reviews, news updates, and podcasts. This app does require a 3G, Edge, or WiFi connection.
K-Love is one of the most well loved Christian radio networks in the country. This app brings the station to your iPhone or iPad. It plays contemporary Christian music.