I thought this was a brilliant deal, although it was a pain to set up on my Nokia N73 (took me a good couple hours to get around the phone not accepting the RS-MMC memory card) once it's up and running it is sheer quality.
I am a newbie here but I felt it would be almost a crime not to report a deal this good on here, having got a good couple of bargains off this site before.
But please please please check the compatibility with your mobile here: http://www.navicoretech.com/Consumer/Support/Compatibility/2006/en_GB/2006/
and keep in mind even if your phone is on there, this deal refers only to the RS-MMC memory card version. So (as in the case of my Nokia N73 that only takes SD memory cards) you may need to go to their download site (https://shop.wayfinder.com/downloads.php) and use the licence key that comes in the box to download a program that will let you install the program onto another memory card of your choice, provided you have the appropriate memory card reader in your computer of course.
Just to underline again the fact that this was a bit of a pain to install, I doubt it will be the same for all phones. But if you're willing to take that chance then you will likely be rewarded with a top-notch GPS system for a fraction of the price you'd expect :)
the choice is yours...