I've written a tool that functions as a specialized iPhone interface for Commons. It is quite rudimentary at the moment, but with support might develop into something. I note that there is currently no "official" commons.mobile interface AFAIK.
The URL is: http://toolserver.org/~magnus/iCommons.php
As most of you don't have an iPhone (yet;-) I'll prefix my demo links with an iPhone simulator. Note that the annoying scrollbars that appear occasionally will not do so on the iPhone itself.
The entry page shos the Picture of the day (with description, en only ATM): http://www.testiphone.com/?url=http://toolserver.org/~magnus/iCommons.php
All pages have a clickable "Wikimedia Commons" header that will lead back to this page. Also, all pages have a search box at the bottom. As this uses the opensearch API, it seems to be limited to a single word... Green links will lead to external pages (Commons and others), normal blue ones stay within the tool.
Try searching for "Alexandria". (This search even found one of our videos, but as video thumbnails are /still/ not rendered in the requested size, it broke the layout; so, no videos for you...) Click on the title link or the image itself, and you go a special description page.
The description has a larger thumbnail, and all kinds of details about the image. This uses my "Commons API" [1], which eases my data parsing considerably.
My Commons API also recognizes images with a location, and will add a Googlemaps link to the description page: http://www.testiphone.com/?url=http://toolserver.org/~magnus/iCommons.php?mo...
The next step would be categories, obviuosly...
Feedback, please!
Magnus