Sony Xperia X10

Sony Ericsson's first Android smart phone, the Xperia X10, is - it shows the company has some work to do before it meets the competition in what is now the best-selling smart-phone platform.

The Xperia, $150 on AT&T with a two-year contract and after rebates, is attractive and boasts some fine features, including a sharp, 4-in. touch-screen display, a fast, Snapdragon processor, and an 8-megapixel camera with advanced controls. It also has an interface that, on the whole, does a fine job of presenting phone controls and feeds from social networks, messaging accounts, and news sources.

But the phone suffers from navigational quirks, like the lack of the dedicated search button that most Android phones have at the bottom of the display. And it runs an old version of Android, version 1.6, which among other things, lacks native support for a flash camera, wireless tethering via Wi-Fi, and Flash 10 video.