It is of course just my opinion. I "do" enterprise Java as my day job. I've programmed in C, C#, VB, Ruby, etc..heck even some assembly language in college and for some reason I find objective-C and the iPhone SDK in general the most painful language/platform I've dealt with in years. I have used Web Objects before (after Java was included) and I wasn't crazy about that either.
I've resorted to using third party engines to do iPhone development. I've settled on CoronaSDK (Lua), but I could easily see using unity3d or some other engine if it fit my needs. I absolutely won't go back to using Objective C. I've come to the conclusion that what language your programming in relates to your quality of life, and after 10 years professionally in Java, I have no desire to learn another platform where it feels like I'm fighting the language/api at every turn. Lua along with the Corona API's feels like fun, and iPhone development is a part time endeavor for me.
A number of Cornellians have been prominent innovators, starting with Thomas Midgley, Jr. ('11),[287] the inventor of Freon. Jeff Hawkins ('79)[288] invented the Palm Pilot and subsequently founded Palm, Inc. Graduate Jon Rubinstein ('78)[289] is credited with the development of the iPod. William Higinbotham developed Tennis for Two in 1958, one of the earliest computer games and the predecessor to Pong, and Robert Tappan Morris developed the first computer worm on the Internet. The most direct evidence of dark matter was provided by Vera Rubin ('51).[290] Jill Tarter ('66)[291] is the current director of the SETI Institute and Steve Squyres ('81)[292] is the principal investigator on the Mars Exploration Rover Mission. Eight Cornellians have served as NASA astronauts. Bill Nye ('77) is best known as "The Science Guy".[293]
Really, you should know the Robert Morris one off the top of your head at the very least.
http://en.wikipedia.org/wiki/ANGEL_Learning