iPhone Duo Is Now a $2,000 Nintendo DS Replacement

Shortly after the iPhone Duo's official release, gamers began using its foldable display to replicate the Nintendo DS , thanks to a free app on the App Store called Delta. Delta is a retro game emulator that runs games from several classic consoles, including the Nintendo DS , NES, and SNES. Apple's first-generation iPhone Duo launched on October 23 at a starting price of $1,999. One day before launch, Delta developer Riley Testut released a major update that added support for the phone's dual-screen design in a creative way, turning the iPhone Duo into a Nintendo DS.