A few weeks ago we launched the news about the promise of Sony Ericsson of unlock the bootloader (main program that loads the entire operating system) of the new Xperia range and that time has just arrived. From XPERIA Blog confirms that is now available, but so far they may only enjoy the privilege of the Xperia Play, Xperia Neo, Xperia Pro and Xperia Arc, that is, I doubt any of you have one right now in your hands to be able to rejoice in the news.
Also to clarify, such and as already stated, if your phone has some contract in force with the operator via SIM can not free until you reach the relevant commitments. If not breach anything then the to would be: install the Android SDK on your computer, then you need to make a fastboot trickery, or execute commands provided with codes and ready to enjoy the freedom.
Holders of some Sony Ericsson that is not privileged probably range the news know you evil, by feel neglected, and they say that they have the confidence that what manufacturer do not allow already gives solution developers (XDA Developers mostly) community. In any case, we hope that the range of favored go expand.