Siri was supposed to be put on Verizon Wireless phones originally, but then Apple bought it at a higher price, which then got Siri into iPhones today. Apple really hasn't done anything that was revolutionary lately. The only time that happened was with the iPhone 4 (2 years ago) with the advent of the high 960x640 pixel display, glass technology, and a fast CPU. Same goes with the original iPhone when it was first launched. But now, that's died off...
As for your second question, the panorama feature was first made with the Galaxy Nexus (Android) when it first launched last year. Apple decided to basically "copy" that feature and add it to the iPhone 5. Most of the features from the iPhone are basically just rehashes of previous generations of iPhones (iOS 6 has like very few changes from iOS 5) or copies from other OSs, just refined a bit more and simplified (notification bar VERY similar to Android). Hope this helped