For those who like the idea of practically carrying a mini-notebook in their pocket, the E90 Communicator is one of the most comprehensive available. It won't appeal to everyone but despite the lack of TV-out and fax features, it is the best of business phones.

While it won't appeal to everyone and comes with a hefty price tag, the Flame certainly does an excellent job of providing a great multimedia experience, thanks to an on-board graphics processor and quality display.

The O2 XDA IIi keeps many of the features we liked in the earlier model, while also boosting processing power.

A very good phone in terms of features, but way too large and heavy for most people.

The O2 is a good option for business consumers who want the convenience of a phone integrated with their PDA.