zedge.com similar site with mobile application

we would like a website similar to [login to view URL] which also has mobile application. mobile application has feature to detect mobile and only display contents matching that device. we would also like functionality that once user is registered and have mobile application installed if he browse website on pc and sends ringtones , videos and other stuff to mobile. and it will automatically start downloading to mobile. like google play store. one user can have many mobile profiles. let us know if you have worked before on similar projects (we will require work examples) and different registered users should be able to post different stuff on that website.