Sensobi has been around in private beta for awhile now. I got a chance to try it out myself a month or two ago and it was still rough around the edges but a really cool concept. The app essentially wants to help you stay on top of your important contacts. Hopefully they have fixed the “contact has been edited externally” bug I reported.
Manish let me know that Sensobi has more or less opened their doors to practically everybody. Their registration form no longer has a wait time and you can even just download the app directly OTA. I am not sure when they made this change but if you use your BlackBerry to keep in touch with family, clients, and other important relationships you might find it useful.
Currently the app is free in the beta period but they promise to have both a free and premium version after the beta. Personally I like the feature that reminds you to call a person once a week or month. Very useful!