Mobile Internet devices to cross one billion by 2013

Reading the shocking news here quite amazed to listen that Mobile Internet devices to cross one billion by 2013. 
It is no wonder that many wireless carriers are concerned with capacity when it comes to supporting the growing number of smartphones and other Internet-connected mobile devices. According to an IDC report, there were 450 million mobile Internet users worldwide this year. That amount is expected to more than double by 2013 eventually leading to over one billion devices.
There were more than 450 million mobile Internet users worldwide in 2009, a number that is expected to more than double by the end of 2013. Driven by the popularity and affordability of mobile phones, smartphones, and other wireless devices, IDC's Worldwide Digital Marketplace Model and Forecast expects the number of mobile devices accessing the Internet to surpass the one billion mark over the next four years.
"The number of mobile devices with Internet access has simply exploded over the last several years," said John Gantz, chief research officer at IDC. "With a wealth of information and
services available from almost anywhere, Internet-connected mobile devices are reshaping the way we go about our personal and professional lives. With an explosion in applications for  mobile devices underway, the next several years will witness another sea change in the way users interact with the Internet and further blur the lines between personal and professional."
IDC reports that the fastest growing applications over next four years will include those that allow for online purchases, participation in online communities and creating blogs. If you are an application developer it would be smart to get your foot in the door in one of these categories now. After all, you will have one billion users to serve in four years.