The ToneFone iPhone Case Will Make You Stronger

A British company just released a new iPhone case that weighs three pounds. The idea is that every time you pick up your phone, you're getting a little arm workout. So when you lift your phone to text, make a call, go online, or check email you’re burning some calories.
The ToneFone case costs $42, plus $11.50 for international shipping. Surprisingly, the first batch sold out quickly but if you order now they're going to be shipping more next month.