BKGCalc - This calculator contains really advance features available in paid software. The fact that its free make this a must have freeware for your blackberry
PrinterOn PocketWhere RIM -enables you to print on the move. It works on open Internet standards and requires no extra hardware.
It handles more than 150 document formats and features a worldwide search function
itrezzoAgent Apple easily open file attachments on the RIM BlackBerry handheld. Provides simplified access to the popular itrezzoAgent Server Software. New version automatically opens attachments after they are rendered to an itrezzoStream. Supports BlackBerry 2.1 and 2.5 OS