The interface works on Android phones, Blackberry and Windows 7 phones as well.
Important
If you cannot go beyond sign-in form, it may be that cookies are not enabled on your mobile device. Enable cookies, and then retry.
Note
It does NOT work on iPhones because the 'Upload' function of Mobile Safari (the iPhone browser) is disabled. The other functions beside the upload do work ok on an iPhone.
For iPhone use Miles 33 App.