But I could and did use it to write and edit long-form prose.
It's way better than a touch-screen for shelling in and fixing server issues when you're stuck at a party away from keyboard.
Actual code writing tends to mean using lots of symbols though, and while the N900 keyboard was better than a touch screen, both make you want to rip open your skull and put the wires in directly in frustration.
I miss that keyboard.
When I had that keyboard, the best email-interface was still Mutt over a terminal. You could use Vim! Type without looking! It was ace.
That phone had the best microphone out of any I've ever owned by a clear mile too. Certainly the only one that could stand up to being used in the band practice-room without just distorting to hell coz of the volume.
I still use it for that, for video-recording band-practise, cos nothing else ever came close. The USB port broke and now can only transfer files with WI-FI and have to use an external battery charger, and all my batteries are swelling slightly and really ought to be retired.
But I don't have anything else that will actually work for it.