Hi, I thing that WPSuperCache it's one one most used and affordable caching plugin.
It is shipped with a plugin to support the WPTouch mobile theme.
I looked at the source code of WPTouch extension for WPSuperCache, and at the WPSuperCache development guide http://z9.io/wp-super-cache-developers/ .
I think that's not a trivial task to implement a new one for GNeo, so I would ask you to provide it or if I have to write it on my own (with your support).
Please tell me about your tought.