And that's not all you get with Garmin's nuLink! services. The Tracker system can follow fellow Garmin users, but also lets you announce your location on Facebook and Twitter, in a similar fashion to ALK's CoPilot Live Premium. You can even send locations to your device wirelessly from Google Maps. This isn't the most seamless of processes, but only requires the login and password of the relevant myGarmin account, and opens up the possibility of trip planning from the comfort of a desktop computer.
The usual array of sundry features are also in evidence. There's ecoRoutes, to help you plot the most fuel-efficient course. There's a 30-day trial of the Language Guide translation aid, a picture viewer, world clock, calculator, and unit converter. You can even download Audible talking books to listen to during your journey. Annoyingly, one feature which Garmin has left out of this particular model is its excellent voice control system. The £70 dearer nuLink! 2390 will be required if you want this.
Despite its many bells and whistles, the nuLink! behaves very similarly to other premium Garmin sat-navs during navigation. Routes are calculated using Garmin's trafficTrends, which is the company's answer to TomTom's IQ Routes. However, in our testing, trafficTrends doesn't yet have as accurate a picture of road speeds, so the 2320 will still tend to underestimate journey times and send you along routes that, in an ideal world, would be quickest if you drove close to the speed limit, but in reality are slower than some back roads - thanks to frequent traffic lights, regular congestion, or horrendous speed bumps. The base 3D Traffic updates also don't appear to cover as many roads as TomTom's HD Traffic, from our testing.
The Garmin nuLink! 2320 is absolutely brimming with features, and the breadth of its portfolio of live services puts TomTom's in the shade. Adding up all the possibilities, though, you could be paying £6.86 a month on top of the £44.99 a year for the basic nuLink! services. So, even taking into account that you get a year of the latter out of the box, this could work out a very pricey sat-nav to run, if you want to take full advantage of its capabilities. The base device is very reasonable value and full of functionality, but you need to choose carefully which extras you want to keep using after the trial periods are over, or your wallet won't thank you.