It's really truly able to have a multi-touch keyboard on a resistive screen WinMo!! it may takes some time.but then how many people would still use Windows Phone classic(except HD2)?!

Notice

multi-touch keyboard

= dual-touch keyboard
= you can hold Shift key and press any letters' key at the same time to input capital letters

but you can't press two letters' key at the same time.it doesn't makes sense.
as my limited ability,i'm not able to write a real keyboard (in Native code.)
this is an 'app-in' keyboard..
(the keyboard have to run in the app.you can't use it to input texts to any other textboxes outside the app.)
But it shows the capability of having a multi-touch keyboard on resistive screen.
and of course it can be developed as a real system keyboard.
the second key it detects may not the key you press especially when the key is far from the Shift key(such as P,O,I,L,K)..
but it's possible to add a function to modify the position values so that it can detect properly.
so i make another app called Modifine.(means to "modify" something to make it "fine")

Much better now..