Eclipse's e4 vs. Microsoft's e7

Hey all...

This is slightly off topic... But I just saw an interesting post over at PC Magazine's site... Evidently the Microsoft Windows 7 team has created a new blog (you can see it here) and the shorthand term for Windows 7 is e7.

Isn't it kind of odd in the year when e4 is getting ramped up for Eclipse that Microsoft would also have their own "e" term for a release? I guess there *are* only 26 letters in the alphabet... So there's a *chance* (small, but there) it was random...

Anybody else have any thoughts?
--Fitz