Thanks, keep all the ideas coming. I don't know we'll do with this list, perhaps some developer will look it over and get some ideas.

A few of the suggestions are already valid apps. Doe, yours is in the form of Black & Whitelist OR BerryBlocker OR Call Screener 1.3
http://www.blackberryforums.com/afte...ner-1-3-a.html
http://www.blackberryforums.com/afte...ighlight=block