Internet access on the move - for a one-off fee

Clever trackpad ; clear pricing plan ; small and portable

Screen should have been better ; browsing slow ; keyboard uncomfortable

A great idea for browsing the web on the move, but it's a shame about the screen and the keyboard

Keep a whole bookshelf under a single cover

Stylish ; silent ; great screen

Slow ; clunky interface ; not Mac compatible

Comfortable reading in a cool package, but it's still early days for devices such as this

For those who want a standalone PDA, this is a well-designed, light organiser at a reasonable price

Supports many media servers ; Works with memory cards and some USB hard disks ; Reasonably easy to set up

Unappealing text menus ; Can't play WMA or WMV files ; No HDMI port

In these days of smartphones it may seem a bit of an anachronism to use a standalone PDA.

Web tablet gets a revamped operating system, instant messaging and VoIP

Gorgeous 24in widescreen display ; Decent graphics card ; Good bundled software

Still fairly expensive

Web tablets that do little more than provide portable internet access have been around for years but they were niche products rarely to be seen outside trade shows.

A combined satellite navigator and handheld computer

A decent GPS with both TMC and speed camera warnings

: Plenty of features and a good price, but the fiddly nature of the TMC means many won't bother using it

A powerful Pocket PC with a VGA screen, Wifi and Bluetooth

A handheld with a huge hard disk and a heap of multimedia functions

Slim and easy to use: perfect for the casual user

Find your way about town with this GPS-enabled handheld computer