Update README.md

Author: RetiredWizard

README.md

@@ -1,7 +1,14 @@
-## PyDOS-virtkeyboard
+## PyDOS-virtkeyboard - PyDOS running on a tablet?
 
 **The modules needed to add virtual keyboard support to PyDOS**
 
+Currently this requires:
+  - CircuitPython 9.x (pre-alpha)
+  - an 800x480 "dot clock"/"666" display
+  - FocalTech capacitive touch chips (Currently supports FT6206 & FT6236)
+
+This has only been tested using the [HackTablet](https://hackaday.io/project/185831-hacktablet-crestron-tss-752-teardown-rebuild)
+
 The **lib/pydos_ui_virt.py** file performs the keyboard abstraction for PyDOS. 
 
 To setup the virtual keyboard in PyDOS follow the standard PyDOS installation instructions and after