The much-hyped Touch Diamond had plenty of potential, but ultimately it is a hugely frustrating phone to use. A great display, stylish design and reasonable browser are let down by a sluggish and slow user interface. Unfortunately, the great eye candy of the Diamond isn’t enough to push it over the line.

Although the GPSmap 60 is functional on at least a basic level, it has a black-and-white display and a relatively high price point. With no expandable memory, slow acquisition times and a confusing control scheme, there’s no reason not to spend a little more and buy the Colorado 300.

HP’s iPAQ 912 Business Messenger certainly boasts plenty of features, but falls slightly short of many offerings from competitors. The lack of included navigational software combined with a small display may turn some users elsewhere.

Though a relatively cheap price point is sure to entice, several gaps in functionality make the GPSMAP 76 somewhat undesirable. It is functional if PC connectivity isn’t paramount, but for the most part it's worth paying more for the extra features.