Whited00r is absolutely the best custom firmware for older iOS devices. Whited00r is basically based on the iPhone OS 3.1.3, not real iOS 5 It is just modded to look like iOS 4 or 5. Whited00r 6 features such as Multitasking, wallpapers, Folders, Reminders, Video Recording, an iCloud alternative using DropBox, and an alternative App Store full of iOS 3 compatible apps.
Whited00r 6.0 Compatibility Devices
- iPhone 3G
- iPhone 2G
- iPod Touch 2G
- iPod Touch 1G