While expensive, the LifeDrive is an excellent PDA packed full of features, and it would surely satisfy even the most demanding of business users.

The ASUS MyPal A730 packs a lot of features into an attractive package, but it could make better use of some of them.

This fast, capable PDA with many outstanding features is undercut by a frustrating touchpad.

While for many users a PDA is a superfluous device these days, for those that want an extremely quick, fully featured handheld PC then HP's iPAQ 112 is towards the top of the pack.

The iPAQ rx5965 adds fully fledged GPS navigation to an already enticing multimedia unit.

A PDA dressed in a portable media player's clothing, the rx4540 is an attractive device that is equally good for productivity and mobile entertainment.

The low-cost Palm Tungsten E2 is a comfortable entry level model for business users.

Considering the many features packed into its diminutive chassis and its snappy performance, the Zire 72 is a bargain.

The N810 is an excellent mobile Web device thanks to a fantastic browser and a great display. However, despite all its strengths there are plenty of flaws.

Performing well in a number of areas, HP's iPAQ 312 is a bit of a jack of all trades. While the media playback features are a bit of a gimmick, the GPS is robust and the Bluetooth hands-free functions well, making this a solid choice for users who have yet to jump on the GPS bandwagon.

The iPAQ's VGA display alone makes it an excellent PDA while the dual-storage slots make it easy to upgrade memory. This is a solid, high-end device for professionals.

Solid, but not outstanding, the HP iPAQ hx2190 offers mobile users some key improvements sure to make life easier.