Check out SFist's Expose on NextBus, Muni, and Junkie Logic
Sometimes someone else does such a kick ass job on a story, you just have to give it some publicity. This little expose by SFist.com on the NextBus/Muni follies is really worth checking out. Just go there and read, and you'll see. It's pretty startling.
Right on, SFist! You beat out the Guardian, the Weekly, the Chron, the Examiner, and more with this one!
UPDATE: I had a chance to listen to a little bit of Muni Director Nate Ford on KGO AM radio this morning. Someone asked him about this very issue, and he was pretty forthright in his response, saying that while implementing NextBus was a priority, but he was also worried about rolling it out without it being ready to go (a contrast to the comments of Ms. Maggie Muni). He did say more than once he supported NextBus in principle and that it would be helpful to Muni in assessing how the system's doing, as well as be useful for passengers.
I think it's notable to hear the boss speak, and contrast it with the snark of Muni's spokesbot, and the confusion of Muni employees. Maybe it's time Muni make some changes so that employees are as knoweldgeable and polite and direct as their boss.