This statistic is pretty interesting: Not only does the Motorola Razr continue to outsell the Apple iPhone, more people are using it to access to the mobile Web. So says AdMob, anyway, in a report of the ad impressions it gets from each handset across the 5,000-plus sites it serves.AdMob releases a report each month about the mobile advertising space. The company has been providing statistics on mobile ads since September 2007. This month's report sheds some interesting light on which phones are surfing the mobile Web the most. It ain't the iPhone. In fact, the iPhone isn't even in second place.

The Motorola Razr V3, Krzr Kc1, W386, and Z6m, and the BlackBerry Pearl and the Palm Centro all beat out the iPhone in terms of the number of ads requested and the number of ads viewed on the mobile Web. Just so you have the hard facts, the Razr has 8.7% of the mobile surfers, and the iPhone has 3.2% of the mobile surfers.

What makes this interesting is that the iPhone has a far superior browser than the Razr, which is limited to WAP sites and can't see the HTML sites that the iPhone can. But the numbers win out. The Razr continues to be the best-selling handset in the United States, so it shouldn't be all that surprising that it is the device most used to access the mobile Web.

The real interesting trend to watch will be how smartphones in general creep up in the rankings compared with feature phones.