I think it depends on the person and their viewpoint. I personally view the iPhone 2G or 3G and iOS 1 or 2 as the start of the smartphone. Obviously technically

I think it depends on the person and their viewpoint. I personally view the iPhone 2G or 3G and iOS 1 or 2 as the start of the smartphone. Obviously technically there were previous ones. I view the significant changes big enough that it marks the beginning of the smartphone for me. Anecdotally, I had a Windows Mobile Phone and Symbian phone interview the 2006-2007 time period. I never thought of them as smartphones personally.