Points of interest (POIs) can be found along a current route or searched for separately. In the latter case you can specify both the type of POI or choose 'any', and specify the distance you're prepared to deviate from your route. You can also search for POIs near your current location and near your destination.
The menu system uses large, clear icons with up to six at a time presented on-screen. Occasionally you need to travel several menus deep to get to the option you want, and it may take a while to find your way around.
The main screen, showing your progress during a trip, is very well constructed. The majority of the space shows your progress along the road, with a small strip along the top indicating the road you're on. Plus and minus symbols discreetly located in the top left and right hand corners allow you to zoom in and out of the map.
A much larger strip along the bottom of the screen provides most of the non-map information, including the direction of the next turn, the distance to the next turn, time to destination, estimated time of arrival and so on. There's also an indicator of GPS signal strength. Tapping this area brings up an overview map of the entire trip.
The spoken instructions are very clear, but the maximum volume could be louder, in our view. The option to play the device's sound through a car stereo is not available to all, though if you have a 3.5mm input jack this is certainly worth trying in order to boost the volume.
Although it hasn't gone quite as far as Garmin with its nüvi 350, TomTom has chosen to add a number of extra features to the GO 910.
Bluetooth is built-in, and you can use it for hands-free calling from your mobile phone or pair it with a Bluetooth headset if you don't want the spoken instructions to disturb your passengers. When using the GO 910 for hands-free calling, you can use the supplied (wired) clip-on microphone in preference to the built-in mic for greater clarity.
The GO 910 can obtain numbers from your Bluetooth-enabled mobile phone and you can then use the touch-screen to make calls and generate SMS messages. The text-to-speech engine in the device can even read out SMS messages sent to your handset. We were able to make calls using our test handset, but not to generate or read out SMS messages, as this feature was not supported.
The GO 910 has 20GB of built-in storage, of which 12GB is free for your own use. You can store music and audio books in MP3 format and images as bitmaps and JPEGs. Images can be played in a slideshow or displayed in a five-by-three thumbnail grid. Music is organised in all the usual ways -- by artist, album, song and genre, and you can manage playlists.
Audio quality for music is reasonable but won't challenge most in-car systems, although the 16-bit colour screen does a better job with images. Unfortunately, the GO 910 lacks a slot for flash memory cards, so you can't use it as an alternative viewer for digital images shot with a camera or phone while you're out and about.
To get music and images onto the GO 910, you'll need to connect it up to a PC via the aforementioned docking station and the supplied TomTom HOME software. This also transfers any extras you may have downloaded from TomTom PLUS, such as additional voices for spoken directions. You can also use TomTom HOME to back up your GO 910.
Edited by Charles McLellan
Additional editing by Nick Hide
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