Delta emulator now lets you turn your iPhone Duo into a Nintendo DS

TL;DR Delta emulator’s v2.0 update turns the iPhone Duo into a dual-screen Nintendo DS setup, placing touch controls on the bottom display and the primary display on top. The milestone update also introduces native Sega Genesis support with cheat codes, save states, and custom controller skins. Delta 2.0 is now available on the App Store worldwide and it also brings RetroAchievements support and a Liquid Glass design.