The issue with making
WP Touch work with CP is that
WP Touch rewrites WordPress and captures the mobile browser before parts of the theme have fired so the full function file hasn't been loaded yet. I've been working on a fairly heavy CP modification that will also use
WP Touch. If you grab the functions needed for the dashboard put it in the
WP Touch function file and get the dashboard template file into the
WP Touch theme it will work. I remember talking to Duane (the other
WP Touch guy and a local) about this and if you rewrote the location of the functions from TEMPLATEPATH to something else (which escapes me right now) then the functions would work properly. The issue with doing that is any upgrade would mean breaking the code again as TEMPLATEPATH would again be in the files.