The hugely popular Wolfram|Alpha has been updated.

With Wolfram|Alpha on your iPhone or iPod touch, you can explore a vast world of knowledge through an app adapted for your ever-changing, on-the-go lifestyle. Use Wolfram|Alpha to discover new information about the world and to deliver expert knowledge into any facet of your mobile life. The Wolfram|Alpha App plugs directly into the Wolfram|Alpha supercomputing cloud, computing answers to your questions quickly, efficiently, and without draining your battery.