No, we're not talking about a custom ROM, and no, it's not April 1st yet, either. After announcing that the Xperia X10 would receive no updates beyond Eclair just a couple of months ago, Sony Ericsson has turned on its heel and now promises X10 owners a boost straight to Android 2.3.3 in late Q2 or early Q3.
Sony Ericsson's Rikard Skogberg says SE has "listened to its consumers," and as a result of developing the Gingerbread-toting Xperia Arc, Neo and Play, it's been able to bring the X10 up to speed through a special development project. Apparently the update will add some features from the 2011 Xperia phones to the X10, though some earlier functionality will be lost in the process. Because of this, the Gingerbread update will not be delivered over-the-air, but via a PC update utility. See the source link for more on that.
Sony Ericsson has acknowledged that it's had a poor track record as far as Android updates go and promised to do better in the future. We're sure X10 owners will be delighted to see these words turn into action, making the X10 the only Android 1.x phone to get an official Gingerbread update. [Sony Ericsson Product Blog]