Administrate a Joomla website using iPhone.
There's an iPhone App for mobile Joomla Admins called .
Get full or free lite version (plus install on your Joomla site).
Available at iTunes store
Joomla Mobile Administrator Templates
Haven't found many yet ...
AdminPraise Lite - not really a mobile template, but some say it's good for that.
... keep watching the Joomla Extensions Directory (JED) for what's to come.