My original post really spells it out.
I said, "I'd like to see this for gp2x that can capture the screen at any moment and output it to a
jpg, gif, or bmp file."
The function in hotkey that allows for screen capture requires other processes to be performed in order to output the capture, and once that is done it's in .png format. This is entirely different than what I'm talking about, but it is sufficient evidence that the program I'm talking about is tangible.
Did you really think that I came on here suggesting a program that I knew already existed? Do people actually do things like that?
... ok, then are you somehow prejudiced against the .png format? You could convert it very easily into .jpg .gif or .bmp
I use IRfanView, it's free and very easy to use.