One of the most useful functions for a portable device such as the iPhone and Touch is as a way to view or edit office documents while on the move. If there’s a reliable way to do that, many people will feel able to leave their laptops at home when travelling.

It’s surprising then, how few apps cover this function. Microsoft has spent decades and tens of millions designing, developing and testing their office applications and they work on high powered desktop computers. So, any developer wanting to make the equivalent for the iPhone has their work cut out.

Byte Squared has taken up the challenge and has an app allowing you to view, create and edit Word documents called Doc² and another that does the same for Excel files called Sheet². Will they allow you to leave your laptop at the office when out on business?
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