The battle for position in the palm-sized PC market is set to explode in the coming year, and Compaq is determined to lead

If there was a PDA king, this would be it. HP includes everything in the iPAQ H5550 including 802.11b, Bluetooth and fingerprint recognition. Most importantly, this is the first PDA we've seen to run Pocket PC 2003

How easy is it to replace a battery? Ty Pendlebury investigates when internal batteries can cost you a trip to a service centre.

Durable and laden with features, but let down by average performance and poor battery life

The iPAQ's evolution is almost complete. The first signs came with the H1940, a Pocket PC that finally managed to be good looking, tiny and powerful - and it even included Bluetooth. But the H4150, while looking rather similar, makes the H1940 look almost Stone Age, with HP squeezing WLAN into the package, upping the processor speed to 400MHz and improving the screen still further.

Dell has waited several years to release its own PDA, and now committed to Pocket PC, Dell's main weapon is aggressive pricing that's on the verge of insane.

HP Ipaq

HP has announced a completely new line-up of computers, printers and handheld devices for the Australian Christmas 2007.

The future, they say, is based on the Internet and mobile computing.

When we first reviewed the hw6515, we were bowled over by how much HP has managed to cram into such a small device.

Expensive, but the features are packed in. Just note the lack of Wi-Fi and some strong iPaq competition.

Microsoft has four key 'visions' for Pocket PC 2003 (PPC 2003): make it easier for manufacturers to innovate, improve the 'wireless experience', bring easy instant messaging to the PDA, and expand the 'media experience'.

When Dell shook the Pocket PC world with the aggressively priced Axim X5 (March 2003, page 41), its rivals could always point out that the X5 was bulkier and uglier than their devices. With its latest Axim, however, Dell has produced a slimmer, more attractive model without compromising on spec, features or price.

In the past, Palm's approach to PDA design has been clear: keep things simple and produce slick devices with adequate specifications for note taking, appointment tracking and contact organisation.

A gorgeous phone with impressive battery life, good features and a very tempting price

The Blackberry Storm 9500 is luxurious and innovative in equal degree, but the slightly cheaper Bold is better to type on.

If you don’t have a car with built-in satellite navigation, the most cost-effective way to add it is by opting for a handheld device with a GPS receiver.

HP is the latest IT player to throw its hat in the digital entertainment ring unveiling a swag of new digital photography and home entertainment products which it hopes will cement its future in the digital home consumer market.

Toshiba's PDA strategy is clear: business users should opt for the larger, more flexible e750 (above), while consumers are catered for by the e350. After all, this has all the features most people need in a sleek package that won't break the bank.

Apple's success can be measured not only in the improvement to its bottom line but in the number of would-be imitators, all of whom have been sent packing by the courts. It also has shattered once and