Definitely. Steve wouldn't be the kind of guy to get angry over this if he wasn't so passionate about building a better product. I imagine he's just as angry that the Android UI is basically a second-rate knockoff. (Sorry if this makes some people angry.) If Google had developed a UI derivative of, but also indisputably better than iPhone OS's, Jobs would have respected them for it.

I guess it's not at all clear from my comment, but I agree with lionhearted insofar as his description of Apple's (or Steve's) motives are basically right. I'm not sure if I agree with their method of retaliation (blocking AdMob from targeting), but I do think they're justified in feeling angry about having their UI innovations ripped off. They don't get to hold onto them forever, but when their work advances the industry by that much, they deserve a level of deference, the same way deserving patent-holders do.

Funnily enough, it's Microsoft that chose not to develop a derivative UI this time, with Windows Phone 7. Something tells me that that UI is going to get old fast, but at least they attempted to innovate and be original.