By the looks of things that's a plugin on existing functionality, serving up a different look when it detects that it's a mobile version of a browser or mobile os. Can't see the gubbins as work blocked, but probably mostly CSS differences and maybe some custom javascript stuff. Not exactly a native app, but as I said making it look better on a mobile browser would be a much more effective way forward, as it's only barely usable on a phone, especially scrolling around the text box on a long post and finding the damn post/preview buttons. Over to you admin