The credit card sized Raspberry Pi computer that sells for $25 now has a working version of Android 4.0 Ice Cream Sandwich thanks to a port. The development community has been working towards getting Android on the Raspberry Pi with CyanogenMod 7.2 and CyanogenMod 9, but this is by far the most usable. This port even supports hardware-accelerated graphics, but unfortunately sound isn’t yet available.
This device is quite limited so this is pretty impressive. The Raspberry Pi sports a 700MHz single-core processor and only 256MB of RAM. Hit the break for a video showcasing it in action.