N900 was awesome, but it wasn't what the masses wanted. It had a lot of quirks, like UI freezing when someone calls you so you couldn't answer the call and suffering from slowing down over a relatively short period of time while being price competitive with the other high end phones.
The 1.0 was the N9. It had excellent reviews. Sadly it was commercially stillborn - Nokia had already publicly switched to Microsoft's bullshit, so it got no commercial push, and nobody wants to buy a dead phone.
N900 was a great beta. We never got a 1.0 though.