The winners of our recent Slacker Radio Plus giveaway won’t be the only ones excited to learn that Slacker Radio’s mobile app has just received a major upgrade. Version 2, 2.0.2 actually, is now available and it includes a variety of bug fixes and enhancements. Highlights include faster performance / app response and much (MUCH) shorter gaps between songs. Transition gaps were one of the few complaints users had with Slacker but now once the app gets rolling, users can move through that 4 million-track library with almost no interruption. The BlackBerry version is available immediately via direct download (uninstall the current version, reboot and visit from your BlackBerry browser) and it will show up in BlackBerry App World this coming week. Likewise, the updated iPhone app is currently awaiting approval and should hit the App Store this coming week as well.