MMiThemer

You have got to check out this app if you like customizing your Ipod touch or iphone. Straight for ModmyIphone comes this great app called MMIThemer. You need Summerboard in order to use this. For MMI

ModMyiFone is proud to beta release MMiThemer, which gives you access to our
huge SummerBoard themes database straight from your iPhone. Now available on
Installer and Cydia, the app allows you to browse through our hundreds of
available themes created by ModMyiFone members, and install them right from the
iPhone.

We will be updating this app frequently, but figured its to a
point well enough now that you guys can start beta testing it so we can see how
it works in production volume.

via MMI