iPhone Evolution Revealed in Patents

Apple iPhone, iPod patent diagrams
Image via MacNN
Seeing patent diagrams like these just gets me fired up. People like to complain that Apple updates their products too often, and that they’re forced to constantly catch up. I’ve mentioned this before, but this is a problem with the consumer, not Apple.
Apple’s goal is to always be improving on their products. They remind me of this Edison quote (via ThinkExist):

Restlessness is discontent and discontent is the first necessity of progress. Show me a thoroughly satisfied man and I will show you a failure.