Well folks pop the champagne, and thank the iPhone DevTeam, Sherif Hashim and Oranav for this one: you can finally unlock your iPhones. Ultrasn0w 0.9.3 is released in Cydia and if you’re new to this, here’s a tutorial on how to unlock.
One of the best things about jailbreak is the possibility to enable true multitasking and install application switchers, pretty much like those ones you can have on Mac OS X and Windows PCs. On jailbroken iPhones you can install Pro Switcher, an amazing tool by Ryan Petrich which allows you to quickly switch between apps running in the background. Unfortunately, Pro Switcher is not ready for the iPad yet, although we’ve heard rumors of a private beta floating around.