Wow guys look at this www.portablemonopoly.com has something that everyone wants. The Modification of THE GBA BACK LITE :). This product is not yet released due to some quality tweaking of the product. It is not officially from nintendo and nintendo hasnt said anything yet to them (According to what PM say) and if u mod this product on your GBA your warranty for your GBA is void. So weather u care about your warranty or not its up to u :) but i'll trade my warranty for this baby :) check it out :

UPDATE:

Lik-Sang is starting to take orders on GBA Backlight!
The "GBA Afterburner kit" is an internal light designed to fit inside an existing GBA system as a modification. No longer will you need to hassle with external lights.