>I've gotten a heads-up that we will be developing touch-screen application. Part of it will involve putting a calculator and keyboard on the screen.
>
>If anybody can point me to some documentation on how to do this...........
>If anybody can point me to some controls we can use.............
>
>All input gratefully accepted
>
>......Rich

You can use any controls you want (to a certain extent). The best way I have found, is trial and error. For example a combobox doe not work well (specially if the user will fingers rather than a wand). Grids either you can't do much, since you cannot increase the size of the scrollbar. Spinners also tough.
The best keyboard I have found (very configuable also) is Click-N-Type. You can find it here http://www.freedownloadmanager.org/downloads/keyboard_touch_screen_software/
As for a calculator you can make it yourself. Just make all controls big, specially if fingers are being used.