Daniel,

Imo, this just sounds like something that would fit into the Maemo 5 HIG:

• Text input for search string (with a Search button)
• Pannable window with search results
• Text input for filtering
• Icons (maybe) for search result categories (e.g., phone, GPS, etc.)

Unless you want something arbitrarily more snazzy than that, am I getting the picture? If I am, I'd say base the UI off of the Contacts app.

But, anyway, if you need help, that's fine too. (Btw, wish I could help right now, but I'm pretty tied up.)

Tim