Firmware 1.1.4 on left, 2.0 on right
Appleinsider is reporting that the latest iPhone 2.0 Firmware betas are offering a more extensive "Erase" function for users. There have been concerns and reports that the current method available to users in Firmware 1.1.4 does not completely erase your personal data from the device.
The new firmware's erase function is said to be more complete and can take up to one hour.