Just as Sony Ericsson fans are getting frustrated by the delay of the smart flagship X1, a more mysterious picture has surfaced on foreign websites today. This phone, which is indeed Sony Ericsson's new smartphone, looks similar to the already released XPERIA X1. It also uses a side slider design with a QWERTY keyboard. However, the biggest highlight, and the biggest difference from the previously released X1, is the super large LCD screen. This screen takes up the entire front of the phone; it seems like we're not looking at a phone, but rather a UMPC (Ultra-Mobile PC).