40% cellphone users subscribed 3G data (123.2M), by Dec 2010
According to CTIA (Cellular Telecommunication Internet Association, the trade association of mobile phone companies in the US), by the end of Dec 2010, there are 302.9 million mobile subscribers (users).
Among these 302.9M users, 123.2 million are 3G subscribers--that is 40.7% of total cellphone users and 39.7% of total Americans.
What does this mean? 123.2 Million Americans might visit your website on their cellphone!
That does not include all those iTouch users who might visit your site through wifi.
This number will only be bigger as of now-Jun 2011.
Are you ready?