Libxml is already in use in a number of environments:
- rpm2html/rpmfind: generation/maintenance/client for 300Megs of RDF
encoded linux software package metadata
- configuration files for programs, metadata (gconf, glade, nautilus)
- data format for gnome programs (gill, gnumeric, gphoto, ...)
- embedded system (TV desktop set)
- handling of satellite images
However most users just don't give feedback, but patches are coming (and
usually accepted !)