The first Nokia phone-mini-computer was the original Communicator, with a 640x200 resolution and a full keyboard, launched in 1996(!) Of course at that time it was targeted purely for business users, but by 2007 they already had a well-established high-end consumer smartphone selection (the N series – rather more advanced than the first iPhones). They just weren’t able to pivot to the touchscreen form factor, largely due to betting on Symbian – I can see how writing an entirely new OS userland from scratch wasn’t a terribly attractive idea.
In the end they did that too, of course, and the N9 was an astonishingly good phone, with a slick zero-button interface and silky smooth scrolling and multitouch gestures. And a terminal and reasonably-privileged root access if you were so inclined. I used a normal ssh/screen/irssi combo to IRC. It’s such a fucking shame that Maemo/Meego was killed.