I can't imagine not wanting to work on this. It must be really complicated at Google -- I'd take a 50-75% pay cut to work on this project at Google, rather than ads optimization. It must be an interesting organizational challenge figuring out how people get assigned to it; sort of like PARC vs. optimizing photocopier software at Xerox back in the day, except back then they kept PARC pretty much secret from engineering (from what I've read).