A leaked video that shows off the UI of the Sony Ericsson Xperia X10-better known as Rachael-also gives us an important clue about the device. The title of the video gives away the interesting news that Rachael's display will have the same 480 X 854 resolution as the Motorola DROID. As for the video itself, we get to see and hear how Rachael will display and play your tunes, videos and pictures. Sony Ericsson's first Android handset is shaping up nicely. Forget being an iPhone challenger, it looks like the X10 will be a real DROID challenger.