In an alternate universe, phones with a fold-out hardware keyboard and full Linux OS are common.
And you can just plug them into a docking station to get a full PC.
I wish I had moved to Linux sooner. I was in IT at the time and only saw windows and OSX in the wild. Servers were all windows except for one xserve. I still to this day have no idea what that server did for that customer. My only real experience with Linux at that time was FreePBX when setting up phone systems for offices.