"Simply put, this is the seventh release of Windows, so therefore 'Windows 7' just makes sense." That's how Microsoft chose to announce yesterday — via an employee blog — that the next version of Windows will be called Windows 7. It's not news, but by making the name Facebook official, Microsoft is offering a promise: When all this crazy market meshugana shakes out, Windows will still be here. It'll make you safe. And it'll be simple, not like the Windows you have now. The number is a nice touch, a return to an old but successful software publisher's practice. Windows 7.20, instead of Microsoft Windows Vista Business Service Pack 2, will make it easy next year for the new IT guy to figure out which disc is the right one to install on your old laptop. Don't steal it on your way out the door, ok?