HI Hikaru!
That would be awesome if you decide to write a book on chess for Gambit sometime! My bosses are GM John Nunn and FM Graham Burgess. If you're really interested, I will contact them and get them in touch with you. I did try to private message you from this forum, but the site claims access denied. Not sure if there's a bug in the forum software or what. Feel free to email me at wolff@firebrandx.com anytime for more information about Gambit.
By the way, I'm also a regular over at the Rybka web site and we have been doing some interesting handicap odds matches with Rybka and various GMs (Joel Benjamin was a recent "scalp" for Rybka ). Right now we've been looking for progressively stronger players to participate in knight-odds blitz games (something like 5-5 I believe). This is where Rybka has white every game, but the b-knight is missing. I think you'd easily win these games if you're interested, and they would be played on ICC. Let me know if you're game and I'll let the guys over at the Rybka website know. Thanks!
-Wolff