***UPDATE***UPDATE***UPDATE***
Comcast has indeed added LOGO, at least for those of us with digital cable (where it's on channel 146). There's a "countdown" going on right now; the official launch is at 9pm. So I'll be zapping back'n'forth between LOGO and HMBOMT and the end of the Giants/D'backs game (featuring Shawn Estes, Gaz -- coincidence?).
Why Comcast denied they were negotiating this morning is anybody's guess. But for LOGO not to be available in one of the gayest markets in the US woulda been kind of embarrassing.