I wanted to build an app to read .monster files exported from the D&D 4E builder, joining the data in some fashion, and rendering them for print. I've heard one complaint about the system is that you can only print one monster stat per page. Apart from this, it looks like a good project.
I was wondering where is the XML schema to interpret the files, though, if there's one, or if I have to interpret the content myself. Is this as bad as the situation in this question about hacking dnd4e files?
EDIT Frabjous day! power2ool now can adjust monster powers! And it's free!