how does my 7105t know it's in its holster?

tricky little thing is so smart!

i don't see any levers or buttons that might trigger the different functions while in/out of the holster..

cool feature !

howd they do eet

It's just a magnet you should be able to find it by touch.

Yep a magnet built into the holster and a mangnet sensor in your device. Not really magic but it sure works like so!

I love great use of technology!