What stands out to me most is what Gruber didn't say. This is not a man excited about a product.
I remember Wozniak somewhat recently stating that he was worried by Tim Cook stressing technical specs in presentations. He said something like: "Steve wouldn't give them numbers, he'd just say that it's blazing fast." People don't buy iPhones for the processor.
In the short term, the 5C will probably help Apple's bottom line. But in the long term, it's going to move them into the company of their competitors. Gruber says the 5S is the Lexus to the 5C's Toyota. But a Lexus is called a Lexus. Both of these phones are called an iPhone.
I'm definitely curious about the thumb recognition technology. My iPhone 5 is supplied by my company, and I have no choice but to have the passcode turned on. I hate it. I find it super annoying to have to type in a code to read a goddam text. The thumb tech seems awesome on the surface, as it solves that problem, but am I crazy to not want Apple to have my finger print on file? They say it's encrypted, but didn't we learn just the other day that encryptions are a minor obstacle to law enforcement? Also, practically speaking, can you not let anyone borrow your phone now? It's pretty common to be driving or something, and the passenger has to look at a map. Can they not access your phone without your thumbprint? Seems like a pain in the ass when you think about it.