Ready for the latest dose of facts and figures to chat over at the nerd water cooler? Here goes! The latest AdMob report, which tracks mobile web traffic from a variety of handset models and operating systems, has found some rather interesting -- if not completely unsurprising -- results. For starters, we're told that the biggest web surfing phone on each US carrier is a touchscreen model, and breaking that down, we find that the iPhone, Nokia N70 and BlackBerry 8300 take the top three spots (in order of mention) globally. As for OS, Symbian is still leading the pack from a worldwide perspective with 43 percent of requests, though the iPhone ain't far behind at 33 percent; oh, and in case you were wondering, Apple's darling generated 50 percent of all US mobile web traffic in February. More numbers in the links below, should you be inclined to visit.