UK streaming music service We7 is developing its own iPhone application, and hopes to have it available on the App Store by the end of this year, CEO Steve Purdham has told Music Ally. The company has also got an Android version of the app running in its labs, and is currently evaluating other mobile platforms, including BlackBerry.This means that by the end of this year, nearly every major streaming service will have mobile apps available. Spotify recently showed off its Android app, and is known to be working on iPhone and Series 60 versions. Meanwhile, the likes of Imeem, Last.fm and Pandora all have mobile apps already available.Has anyone asked MySpace Music what its plans are? Just a thought.