We're potty about cars, but with Crave Towers located in central London, even we're not crazy enough to actually drive one to work every day. Instead, we brave the mean streets on buses, Underground, trains and bikes, and while we rarely get lost down the Tube, we do sometimes need a little help when we're walking or cycling somewhere new.
We strapped on our helmets and took three of the most popular sat-navs for a test run around the concrete jungle to find out which was the best -- or at least the best of the worst. We tested the apps in the same 5-mile route from central London. We used an iPhone 3GS, although all these apps should work the same with the iPhone 3G, and we made sure the phone always had a clear view of the sky by using a handlebar mount.
Since you should keep your eyes on the road, we used Bluetooth headphones and tested each of the apps for the accuracy of the voice directions. We also listened to the iPod during our trips, to test how the sat-nav interrupted the music
Click 'Continue' to read how TomTom led us astray.