Update : oasis active mobile is now supported on android devices no longer limiting oasisactive dating to iphones and supporting android, ios and everything else.
Join Oasis Active I am currently looking through free cell phone dating sites on a daily basis for the ones that are worth adding here.
Ok Cupid Okcupid is a nicely designed website with smaller amount of members compared to the bigger sites but it is free and they have a free mobile app as well.
Join Ok Cupid Blendr Blendr is a location based dating site app for your phone that can be downloaded free from the itunes store or you can use the facebook app.
Blendr has become huge and is certainly worth a go.
You can access these websites on any phone including iphone, samsung, motorola, nokia, lg, t mobile, google android, ios, blackberry etc.
Plenty Of Fish Plenty of fish is a great mobile phone dating site that you can use on your phone or on the internet with your computer.