If you're after a phone first and mobile email second, the 7100g is the BlackBerry for you.

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

It lacks a camera or Wi-Fi support, but makes up for it with its compact design.

This is a top-notch organiser, but it does leave room for improvement. The software and bundle is solid, but some minor issues keep the device from shining.

The P910i is a significant upgrade in display quality and memory storage from its predecessor, but the lack of Wi-Fi support and its expensive price tag count against it.

The Palm Treo 650 is a fully featured smartphone with its small size, backlit keyboard and improved camera making it a worthwhile purchase.

The Xda mini is a lightweight, compact, tri-band smartphone packed with features and housed in a perfectly sized case.

The Xphone II bundles lots of features into a compact, sleek design. It would suit phone users needing basic organiser capabilities, but those wanting more comprehensive PDA features should stick to the Xda range.

This model is essentially the same as the Xphone II, with only a few improvements.

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