Need to allow users to upload photos from a mobile device?

I have a multi-user blog website where users upload photos and rate them. Currently users can upload photos from their desktops or laptop. I want to be able to allow them to upload photos from their mobile devices (Click Upload => DirectTo Iphone library => Chose ) <<–for example

Could anyone please tell me how should I go about doing this?

All help is apperciated thanks! :slight_smile: