I wasn't particularly thinking of running GP2X apps, there's no gpio etc, I just meant for compiling for the GP2X without having to cross compile.
GP2Xpdf and 2Xrally use lesstif, which is ok but not a full motif implementation and there are a number of apps such as comic and ebook readers that use GTK.
I don't want to have to rewrite a complete user interface when existing toolkits can be used with the X server.
I'm going to try it anyway. If it works out expect some libraries and maybe a qemu image in the archive.