advice on writing an application

experience with matplotlib+PyGTK on platforms other than

    > Linux. (Ahh, the joys of scientific programming: now
    > Windows.) Perhaps wxWindows handles cross-platform apps
    > better, I'm not qualified to answer. If other people are
    > interested, I could try writing up a Wiki page with one of
    > my small "matplotlib embedded in a GTK app" programs. --

FYI, gtk was the first and only matplotlib backend for many releases,
then came PS and WX. I use GTK/GTKAgg backends primarily for
application development with embedded matplotlib, and these apps run
on win32, OS X, linux and solaris. So pygtk + matplotlib is a very
good combination for cross platform GUI developement, in my opinion.