I type with my fingernails with my hands at traditional keys in a slanted position, yet I barely use every single one of my fingers, especially the pinkies unless I was in the middle of eating something... At most, I use 3 fingers with a thumb to hold down SHIFT key if needed as well as typing at the speed of doing 1 full, 12-font, Times New Roman, double-space page in under 5 minutes without distractions, but in under 2 if going from pencil to text... I switch between looking at my fingers type and looking at the letter turn into word on the screen naturally to the point that it's all second nature to me...
Other than that, when it comes to "typing" with a controller/remote, I can still amaze people at how fast I could do that in general... Also, I wish my old joke from middle school about making USB keyboards the size of a blackberry still had some relevance in this day and age...