well... i didn't know that google was so short on money that needed a sponsored release...
Obviously just speculation on my part, but seems more likely (to me) than Google actively trying to get sponsorship on a code name.
I guess it makes sense for an ad company to sell naming rights to some extent, but I can't think of another occurrence of google mixing it's branding like this before. Google historically set themselves apart by keeping ads somewhat separate.
It is a funny name...and I do have to wonder whether they actually got paid for this.
I don't know, I think the alphabetical releases are quite useful to make the chronology clear, second only to numbered versions.