Speaking of which, perhaps the 123 button could work like the Shift key as well - single press to pull the next key from the 123 layer, double press to lock to the 123 layer - so shift+123 makes the next letter from the 123+shift layer, but the rest of the following letters are the normal ones. 123+shift+shift locks shift but does only the next character from 123... Actually that's not necessarily as convenient for the users, so you could put 123 key behavior (and while you're at it Shift key behavior) into settings as well, between the way they work now and the way you're intending to implement the shift thing. (If you make a Ctrl key, the same thing would probably be great for that too.)
Bugreport. I think there is a problem with FastSMSevo and Nokia Pure font. I have installed and activated Nokia Pure font thou Theme Customizer. Now FastSMSevo doesnt start then I touch textareas. If I switch back to Nokia Sans font, it works again.