mostly stuff to code for concoles are Emulators
what tools you can possibly do..hm..
some music extractor, header dumper,editor,convertor ..nothing fancy,
the XBOX XBE Format is just like the PE with a small header infront called 'xbeh' few bytes from it u will find ur PE and dump it from there to a new file
thus not that u have something to do with it ...
i'v started a small xbe header reader as plugin to my disassembler (just for fun) i kinda left it for now though ;P