Google has contributed to this year’s Macworld by unveling a customized ‘iGoogle’ interface designed especially for the iPhone. The first version, which debuted at the beginning of December, offered mobile Safari-friendly access of search, Gmail, Calendar and Reader to the handset. The recent upgrade boosts speed, increases arrangement and options flexibility, adds automatic refresh to the Gmail inbox and brings iGoogle gadgets to the iPhone.

Google plans to roll out the improved UI to international versions of the iPhone, as well as other handsets “that offer similar usability and browser capabilities.” You can access the new version by visiting www.google.com on your iPhone. Now, if they’d only @#$%* add editing of Google Docs on the iPhone, we’d be set!

Read more at My iTablet.