Yep welcome KopyKat!
"I don't know, but does anybody really like using a large touch screen: I always found that so tiring/annoying..
--but find it quite useful on a small screen: smartphone or TV remote control."
Yep works great for specific function and 7" is the upper limit for me.
As have a 7" Tablet mainly for ereading books,docs,manuals.Chess,Angry birds a few games.
Web browsing lightly and can check my library holds or look up an address on google streets,Look up timetable for Trimet Bus schedules. To quick email checking on the go.
Also comes in handy hooking up to my nikon camera and control camera setting up shots to also looking up stuff nature guides & trail maps out in woods to star gazing with astronomy apps. With Spashtop 2 app can control and access my Desktop Linux or Windows. Gfxtablet app can convert it into a graphic drawing tablet to use with Gimp 2.8.
So yep a lot of use for specialized applications functions and being on the go kind of situations where a laptop would be more cumbersome and more a determinant in lugging around.
But no way would want something bigger and have to rely using it for everything touch desktop OS with no solid keyboard. And wouldn't want a 10" tablet as enter into the netbook realm of bulk. And would prefer one of those in lieu of a touch tablet that size.