Its been a while that Google, the search giant, launched Google sync which allows you to synchronize your Gmail Contacts and Google Calendar with your iPhone, Windows Mobile, and S60 devices.
Google, today added Gmail support to Google Sync for iPhone, iPod Touch and Windows Mobile devices. This will surely help people who want push notification support on their iPhones as Google sync just offers the same. So users who like to keep their inbox updated just need an always-on connection.