Not the person you're replying to, but I was a big BB user in the 2000s and had the Blackberry Passport briefly in 2015 to test its Android app compatibility (it was pretty damn compatible!).

What I discovered was that the best BB keyboards for error-free typing were the curved 4-row keyboards on the Bold 9000, 9700 and 9900. The Passport kb was flat, rectangular and only had 3 rows over a very wide layout and placed at the very bottom of the phone, making it cramped to type on. I love the idea of keyboard phones but only BB of yore did it right.

miss the bold 9000 so much

it sounds like there is a slow and steady open source community around either replacement q20 keyboards, or a reverse-engineered one? https://hackaday.com/2025/06/04/the-blackberry-keyboard-how-...

and the beepy, which runs linux and for some reason has the keyboard blurred out on its homepage https://beepy.sqfmi.com/