Well, they're a big network, you'd expect them to have some exclusive mobile phones. And they do, starting with the cute little O2 Cocoon, with hidden front lights, and a sleek little body. It's not O2's ONLY exclusive phone, though, because O2's XDA range ain't no slouches. Take for example, the XDA Stellar, with touchscreen, QWERTY keyboard and super-speedy web access, one of those phones that makes people go, 'Want. One. Now.'