Apple will release an iPhone software update during MacWorld Expo 2008, well informed sources confirmed MacScoop. But it appears that the unpolished iPhone sofware version recently leaked on the Internet doesn't include all the features of the final release.

The reports we obtained claim that the software update will add copy-paste, which is one of the most requested features by iPhone users, and will provide a few other user interface improvements.

Additionally, the update should provide better stability and performance for the device which sometimes suffers from UI glitches and application hangs in its current version.

Sources also confirmed recent reports claiming that a soon to be released iPhone software update will offer very improved Google Maps with localization and hybrid view, mass SMS sending and multi-page editable home screen.

It is not out of question that other, non revealed yet features, appear with this update, our sources said. Be sure that we'lll keep you updated in case we obtain more information.