Sony Ericsson has unveiled its latest flagship handset, the X10, which had been previously referred to by the codename Rachael. The smartphone is promised to be the first of many devices built upon the company's Android-based UX "Open OS" platform. The X10 features a 1GHz Snapdragon CPU, 4-inch capacitive touchscreen with 480x854 resolution, and an 8.1 megapixel camera with LED flash and autofocus.

The interface offers a Timescape utility that can be used to browse and manage content such as Facebook, Twitter, photos, e-mails and text messages. Recorded videos, YouTube, and PlayNow are all accessible from the Mediascape area. An "infinite button" combines a variety of interactions for one person into a single view, while facial recognition automatically matches pictures to the phonebook.

The X10 will be available in the first quarter of 2010, with black and white color choices. The device is designed for GSM networks, although a carrier and pricing have yet to be announced.