I'm clueless, too. I sent wyvrn an e-mail along the lines of 'are you sure?' and 'you're gonna be missed'. I think his exit was a classy one, in that he tried his best not to create a range war; however, the very statement itself creates a mystery.
I often 'lurk' in the tech sections, reading, trying to learn, and wyvrn is one of those guys whose posts were well-written and articulate. I have benefitted from his presence here and would hate to see him go. Hell, I hate to see any of my new friends leave this marvelous community.
Wyvrn, if you're checking in and reading this, please know we're keepin' the keyboard warm for ya!