If you've been waiting around for an easy way to play homebrew
swag on your Nintendo DS or DS Lite, then prepare yourself for the stealthily-named Ninjapass. Like a handful of other solutions already on the market, this device lets you load up your games and play them directly from the DS cartridge slot -- no flash cart required. There's only 64MB of onboard memory, but you do get passcard functionality
to boot content from the GameBoy Advance slot, along with a multi-game menu, convenient system for saving games, and bundled USB 2.0 adapter for hassle-free file transfer. The Ninjapass is currently available to pre-order -- it will ship when "stock arrives" at an unspecified date -- for $52, or a little less if you order in bulk.
[Via DS Fanboy