We are in the same boat. I am working on a Squeeze module at the moment for the Pronto. I control my 74K+ track library of hi-res music through Squeeze Server (LMS) via iPad. Volume control of receiver on the Pronto. I recently pulled together a JSON based module to monitor what's playing and have been toying with adding JSON-based Guide Pages so that I can load music from the Pronto as well.

This is for my own use only and I have no intentions of competing with the existing Squeeze Modules. However, I have considered uploading what I call SqueezeLite (Single Player monitoring with No Artwork) here in case others might want similar functionality.