Absolutely on the money. Roboto looks really similar to Helvetica; in fact, so similar, that it wouldn't be improper to accuse Google of ripping off something without due credit (at least the presentation had nothing to say about Helvetica). Google has the money to license a font, and with Apple moving to Helvetica Neue as the default font on iOS , Helvetica could have been a fair option.

That being said, I like Robota and am glad that Android has a nicer font now. Also, people don't care, or shouldn't have to care, if it's Helvetica or something else, as long as it is more pleasing to the eye. On that count, Google did a good thing; good but not classy.