Slacker 3.0 appears to be coming soon to BlackBerry, and here's the lowdown. It will allow you to sync and cache stations through your Wi-Fi connection, which means you'll no longer have to physically connected the device to your PC. But unfortunately this added convenience requires you to pay $4/month for the premium service. It appears there will be a free trial to start, with the premium service also including requests, unlimited skins, and most importantly it removes all banner ads. Let us know if you're interested in Slacker 3.0 and willing to pay the monthly fee.