Whoa! After two months of delay Sony Ericsson's finally done something with the Xperia X2 -- giving it an extra 'a' (for North America) instead of pushing it out to us mere mortals. Mind you, the number of times we've seen this thing -- even as a KIRF -- may fool you into thinking it's been out forever, but the reality is it's slowly morphing into a unicorn. You know what though? If we wait for another two months, the X2 / X2a might even get a piece of that Windows Mobile 7 action. Or Windows Mobile 8, when SE's eventually done with its siesta.