Google pushes mail to the iPhone
by Volker Weber
Earlier this year, we launched Google Sync which allows you to synchronize your Gmail Contacts and Google Calendar with your iPhone, Windows Mobile, and S60 devices. Today, we're adding Gmail support to Google Sync for iPhone, iPod Touch and Windows Mobile devices.
Works for me. Caveat: you can only have one Exchange account on your iPhone at a time. If you access your work email on Exchange, you can't have Google use ActiveSync at the same time.