I spent all day yesterday trying to compile a windows toolchain. The cygwin error is confusing me, and it'll take tons of work to make it compile with MinGW. I ended up just asking my friend for an ssh account into his mac and compiled the toolchain there. But I was thinking, could we compile the toolchain for the iPhone itself. The heavenly image is already there, only the headers would need to be copied. Any one try to do this?