Complex sentence: As of the 7th of March 2011 the Android version of Gowalla was release, this allowed the same features that applied to the iPhone 4 to be used on Android phones, it also updated the interface dramatically to introduce a new "Passport" look.
Split into simpler sentences: As of the 7th of March 2011 the Android version of Gowalla was released. This allowed the same features that applied to the iPhone 4 to be used on Android phones; it also updated the interface dramatically to introduce a new "Passport" look.