- libpnd: merge overrides, fix it up;
  - full-replacement PXML is one option, another is
  - apply override to all sections that match -- by unique-id, so apply override to all sub-apps that apply?

- libpnd: appdata-dir-name?

- mmwrapper black screen?
- About screen
- override
  - .desktop in same place as .pnd, override category
  - icon

- deploy..
  - .desktop for deployment, for running from xfce

- future
  - honor render_mask to know what to update
  - handle SD eject/insert? or leave on manual
  - defer icon load?
  - add callback to pnd_disco_Search (maybe new func to not break cpas code), so can show number apps found so far
  - note taking field