A couple of issues.1. That graph is nearly impossible to read2. Source?3. That doesn't describe the smartphone market up to and including 20074. That doesn't show that the US was a largely locked market (and still is)
Actually it was unusual back then, stop confusing the practices of the USA with the rest of the world. I purchased unlocked Nokia smartphones in 2007 (actually I purchased Nokia unlocked smartphones in 2002), it wasn't hard to find them.
No, I haven't said this. I said until iPhone OS 2.x was released the iPhone wasn't a smartphone, there is a clear difference.Well there were feature phones with the exact same features, so why wouldn't it be a feature phone,Which models?