I had an n900 back when they were new-ish. I <3’d it, ended up giving it to my daughter and she used it for a long time before it finally broke. It was a great phone. I’d love an LTE version!
The Neo900 is an attempt to update the device, but it has been in development for a long time and doesn’t appear to be any closer to actually making anything (unfortunately..)
The Maemo Leste people are working on porting Maemo Leste to the Motorola Droid 4, which is an LTE phone. There’s hope!
same, it’s the one time I ever bought a high end phone when it came out, and it’s the only time I’ve written my own phone apps just to solve some random need I had. (vala was a really nice language for n900 apps incidentally)
NetBSD/evbarm supports the N900 and should be able to run up to and including NetBSD 8.x, will hopefully have it working with 9 & newer once modern u-boot works on it, there was a regression at some point since 2016.x release of u-boot.
I had the non-phone version N810 and thought it was the best portable piece of tech ever made until I got the original iPod touch as a gift a few months later.
I just pulled mine out but it doesn’t seem to be taking a charge. :-( The 770 still works, though!