I am new to mobile development, so my question is very basic. If I want
my application to support different platforms, such as Pocket PC and
Smart Phone, both Windows Mobile 2003 and 2005, do I have to ship a
different binary for each platform?

I'm developing a PPC application using MFC. Some of my buttons are owner
draw style. The function is generally OK by drawing two bitmaps, except the
noticeable flikers especially when I click one button and then another: the
old button will always been redraw. I cannot disable ...