Apple has given iPhone Software 2.2 to beta testers, according to one report which claims the updated software restores the capability to push email to the device in the background.

Macworld UK says the update also introduces better GPS-functionality, enabling more accurate reporting of speed or position while in a moving vehicle, for example.

Apple's 2.1 software release entered testing in July. It contained a host of bug fixes and enhancements and drastically reduced the number of user complaints surrounding the device.

Complaints had included failing or unusable applications, unexpected call dropping, unstable 3G connections and other issues.

See also:

Apple iPhone 3G review

Apple iPhone 2.1 software review