Just incase you were not paying attention, DS firmware upgrade is in the works. Loopy is working on a hack that will allow booting from GBA cart without a passme. This will still require some means to exicute code (either a Passme or wifi method) as well as a temporary and simple hardware modification. Great work!
You can read progress in the gbadev.com forum.
http://forum.gbadev.org/viewtopic.ph...d3237676c5bfb6
Thanks to http://www.thepernproject.com/ for the news.
