Stick pushers aren't only found on T-Tail A/C,
True - Not that it's really relevent, but the Swearingen Metro's also have stick pushers.
It's usually disabled by most pilots though, as no Metro pilot dares get remotely close to the stalling angle, and the only time the SAS (Stall Avoidance System) works on them is when you're flaring - It pulls the stick out of the pilots hands and makes the plane land hard on the nosewheel, then bounce, bounce, bounce ....