Now that the Sony Ericsson Xperia arc and Xperia PLAY phones are released, some will now turn attention to custom ROMs and getting the bootloader unlocked. In SE’s original announcement, no timeline was given, however developer Karl-Johan Dahlström followed up in the comments section recently and said that they hope to have the bootloader site “up and running in the upcoming weeks.”
The website will be used to unlock the bootloader by retrieving an unlock bootloader key once you’ve entered the IMEI number of your handset. This key will then be used in Fastboot where the actual unlock sequence will be performed. SE is promising more detailed instructions later and we’ll keep you posted once it’s up and running.