Very basic BBM Connect Blackberry app

Hello, This is a very basic Blackberry app. - The user selects a contact from a list of bbm contacts. - The user selects the amount of time to ping for (10S, 1 min, 2 min, 3 min, 5 min, user defined) - The app sends the selected user a message every 0.5 seconds saying "PING!!!" for the amount of time selected by the user. There must be an additional element where the user can share the app by selecting Share, and choosing a bbm contact on the list. This will send the user a link to download the app. There must also be the option for the app to push messages to the users blackberry. For example, the application Screen Muncher does this to advertise their other apps, I want this same functionality. That is it, I do not require submission to app world, and the UI does not need to be very special, but it must be simple and clean. I have a JAD file with a very similar app so this should make development easier. Thanks, Ollieco