Thank you for this great article — a wealth of information. Just one small correction:
Dave Nattriss
11

Great point! Funnily enough, I had a Sony Ericsson P800 and that odd Nokia. I guess a Treo was a smartphone too — and I had one of those.

The iPhone was the smart phone that most analysts recognise took the smartphone out of the niche category (expensive enterprise devices, or for a small individual) into a mainstream category.

Thanks for pointing it out.