The new Apptivity Baby Gym from Fisher Price is reduced from £34.99 to £19.99 at Argos right now. That's a saving of a rather lovely £15.00.
Suitable from birth, the Fisher-Price Apptivity Gym is designed to hold an Apple iPhone or iTouch device securely. It's basically a baby gym from the future. You can select Fisher-Price apps or content of your own choosing to help keep baby entertained. For old school parents it also works without an Apple device, and features 4 repositionable toys (a roller ball penguin, a froggy with beads, a birdie paddle wheel, and lion clackers), as well as a peek-a-boo mirror and 2 bat-at butterflies. It has an easy-carry handle making it portable, and it folds flat for easy storage. Please note that it should only be used under the direct supervision of an adult. Which I don't think means grown ups are meant to use it!