GBA4iOS has released version 2.0 of its Game Boy simulator on its website. The free download lets users play a number of Game Boy Advance, Game Boy Color, and Game Boy games on their iPhone or iPad, with a built-in browser giving users the option to download more ROMs. GBA4iOS 2.0 can run on any iOS device running iOS 7 or higher, and no jailbreak is required. The non-App Store download appears to rely on a certificate issued through Apple’s Enterprise…