On: Ending support for Android Market on Android 2.1 and lower

[thought_alarm]

Since 2012 and iOS 6, the App Store will offer to install the most-recent compatible version of an app.

You can buy the most-recent version of app on your computer using iTunes (or a newer iOS device), and then download the last compatible version to your iOS 6 device.

[futurix → thought_alarm]

Original iPad only had iOS 5 - so no such luck. Same applies for pre-3GS iPhones and first 3 generations of iPod Touch.