Acer are going for gold with the news of an olympic special edition of their A510 tablet. Not much has changed with the Android device; you still get a 1.3 gigahertz Tegra 3 prossesor and a 10.1 inch IPS display. the stand out feature is the massive 9800mAh battery which gives a huge 15 hours of usage which should get you through a good couple of days video and browsing.
The key differentiator is the Olympic insignia emblazoned on the back and the exclusive Eurosport bundle which will provide mobile coverage in HD of the games. It may not be the most beautiful of Android tablets but it is certainly very well featured for the price of £349.
You can register interest in the device with the Carphone Warehouse.