The iPhone did what it could do because it bundled a data plan that was reasonable at the time ($20/month unlimited, though 2G only, was a pretty damn good deal). Prior to my iPhone I used a Treo 6xx series that Verizon wanted me to pay $45/m for data (2G also).
The lack of native data connectivity made PDAs deal with the continually nasty and ever under-estimated problem of sync. With iPhoneOS v1, Apple matched what Palm had to offer - an iPod touch was almost as good as a Palm PDA, an iPhone better than a Treo. With iOS2 and ActiveSync, it blew away it's competition.
Absolutely this. I had an XDA II, then an XDA Mini S pretty much from launch (rebranded HTC phones on O2-UK), but as a student simply couldn't afford the data plans to go with them.
The iPhone (and really, the iPhone 3G for me) is when prices started to become reasonable.. nowadays, you can get decent data plans with (almost) everyone here.
The lack of native data connectivity made PDAs deal with the continually nasty and ever under-estimated problem of sync. With iPhoneOS v1, Apple matched what Palm had to offer - an iPod touch was almost as good as a Palm PDA, an iPhone better than a Treo. With iOS2 and ActiveSync, it blew away it's competition.