God I miss real keyboards like this.
The problem is that the physical keyboard takes permanent real estate whereas the software keyboard can come and go, to allow for full screen applications.
I do miss innovative phones like the sidekick, LG chocolate, and other slider ones.
I make due with a Unihertz Titan Slim. Not the best, but with custom ROMs, a temporary relief. I will buy another one or two but after that, I have no idea what next. Hopefully, someone else with make limited edition niche devices.