The Fisher-Price Laugh & Learn iPhone Apptivity Case is £9.99 at Amazon, reduced from £13.99, apparently. It's the same price at Argos, so if you want to click and collect you can do that, otherwise have it delivered at home for free.
I was given one of these when they first came out over a year ago - maybe two now? - but I didn't have an iPhone, so I gave it away. Now I have an iPhone I've often considered getting one because my children love my phone, and it's a constant fight keeping it away from them. It's a great little thing for protecting a really expensive phone.
The durable, rubber case holds the device behind a clear film to protect the screen while the easy-grasp handles are sized just right for baby to hold. The case itself is a toy too, as it has rattle beads on the handles and a mirror on the back.
The case is compatible with iPhone 1G, 3G, 3GS, 4G, 4GS and iPod Touch 2G, 3G and 4G.
They say that it helps improve the child's social and emotional development, hand-eye coordination, visual development and sound awareness. I don't know about all that, but I know it keeps 'em entertained while you're making dinner!
Thanks to nfreitas at HUKD