its invitation-only beta release back in 2004 , Gmail has grown
to become of the most popular email services in the world boasting over 260
million users. It has received critical acclaim from across the ecosystem,
ranging from the media ,to
users and web developers, and it has become a central hub from which Google has
promoted other successful services .
the rapid adoption of smartphones, the ability to access email on your handset
in a simple, fast and function-rich environment has become a basic requirement