@blark, Great news for you... Read about the cb (core bluetooth) module that is in the current Beta release of Pythonista http://omz-forums.appspot.com/pythonista/post/5792132698734592

Sure I could hack something together, but it wouldn't be nearly as nice.

See my comment here:

http://omz-software.com/pythonista/forums/discussion/105/xcode-objective-c-functions-and-python-bindings#Item_3

ctypes works only in very very limited form (even in Python for iOS) in legitimate app store apps. Good for C structures / data types, illegal to use for loading/running native code.

Yesterday there was my "Oma and Opa"-day, I think one will need MATRIX - stuff
See you later ...

EDIT:
Started: at http://petergragert.info/pythonista_by_pkhg/pmwiki.php/Roger/NumpyThings