Cross platform applications? I know that C# apparently has cross platform support but I met with limited success on Mac OSX (perhaps I didn't try hard enough).

Cross platform applications? I know that C# apparently has cross platform support but I met with limited success on Mac OSX (perhaps I didn't try hard enough). It is fairly easy to get a cross-platform library and use C++ to write for the main OSes (Mac OSX, Windows, Linux, in no particular order) and then you can also take the same code and compile and run it on your Raspberry Pi and ARM systems. I know you could probably do the same with Python but I think small systems would suffer a speed penalty (I even find desktop Python applications slow so I dread to think of GUIs on an ARM written in Python). I reality I have not ever come across a piece of paid software that included a runtime of Python or some scripting language other than Perl, and that clearly wasn't for a GUI app. What else would you write for all three platforms in? Java? I am curious. (I suppose if you are targeting one platform only, then it might make sense to write in languages typically tied to that platform, eg. Obj-C / Swift / VB / C# (as is vastly popular in Windows land)).