BlackBerry Pearl and Curve users who are on T-Mobile’s network are in luck, as the company will be launching a Free BlackBerry Trackball Replacement program. It’s not too uncommon for a BlackBerry Pearl 8100/8120 or BlackBerry Curve 8320 to have a problematic trackball, which is probably why RIM has been using trackpads more often now. T-Mobile is now offering subscribers who own those phones and are having problems with the trackpad to visit the T-Mobile store, and have the trackball replaced. Sure seems like fantastic news for T-Mobile BlackBerry users.