This may sound stupid but....

[spiderman951]

is there a way to uncompile a *.prc file and see the source code?

I would like to see the source code of complicated programs to get a feel of the structure

[ayasin]

Yes, but it generates assembly, so unless your very farmiliar with assembly and with PalmOS workings already, that's not going to be of much help to you. Also it would be almost impossible for you to follow a compiled program's disassembly even if it came out in C. The reason being that function names and variable names are not preserved so you would have void a(int a, int aa, UInt32 b) and so on. This obviously wouldn't be very helpful and additionally all macros would be expanded so that would be hard to read as well.

A much better alternative would be to go to sourceforge and find a relatively complex opensource palm project and take a look at it. I believe CryptoPad is open source...you might start there.