The cancellation of the X7 marked a turning point for the company. By , Sony acquired Ericsson's share of the joint venture, ending the "Sony Ericsson" era and focusing entirely on the Android-based Sony Xperia brand we know today.

It was rumored to feature Dolby Digital Plus surround sound and an HDMI output for media playback.

A 1.2GHz Qualcomm Snapdragon processor, which would have been a significant step up from other smartphones at the time.

It was built to run Windows Phone 7 , featuring the then-new "tiles" interface. Why It Matters Today

Based on the leaks that circulated, the X7 was designed to be a "beast" of its era: