Assuming something would happen because someone else came up with the idea is dumb. Remember that before the iPhone, this was a smartphone
You can't assume that anyone would have come out with an iPhone because Apple came up with it.
Similar to iPhone competitors. Until Google came out with a killer OS and app base, no one could compete with the iPhone. Speaking as someone who owned a Blackberry Storm the jump from that to the Motorola Droid was like moving from Windows 95 to Windows 7. And I got the Droid a year later so it shouldn't have been a drastic leap. I actually think I bought the droid at full price to get rid of the Storm. Or it broke so many times they let me upgrade early. And I sold so many freaking droids. I pushed so many people away from Blackberry Storm to the Droid.