It was built to run Windows Phone 7 , featuring the then-new "tiles" interface. Why It Matters Today
The is a unique piece of mobile history—primarily because it never officially hit the market. Most of what we know comes from a series of high-profile leaks and promotional videos that surfaced around November 2010 . The Smartphone That Never Was Sony Ericsson Xperia X7 Review
It was rumored to feature Dolby Digital Plus surround sound and an HDMI output for media playback. It was built to run Windows Phone 7
The X7 is often discussed alongside the , which was leaked at the same time and featured a 3.5-inch screen and a surprising 10.1-megapixel camera. Sony Ericsson Xperia X7 Review