NeoWin reports a new jailbreak has arrived for Apple devices with iOS4:
The jailbreak, created by a user under the alias of comex, is accessed on a iOS4 device via Safari by navigating the browser to jailbreakme.com. Using a fancy web-based interface, a user simply slides their finger across the screen to perform the jailbreak.
A note of caution, reports are coming in that some have bricked their phones using this jailbreak, or are missing features such as Facetime and MMS. Please remember this before performing the jailbreak. Performing a backup is also always highly recommended before attempting a change such as this. A hard restore may correct issues stemming from a botched jailbreak. As expected, jailbreakme.com is experiencing a high load, and performance may be sluggish. This could be the cause behind the hit and miss bricking issues the jailbreak creates.