Inquiry about the free six-month usage of the N82 Black Navigation Edition

The N82 Black Edition is now available domestically and has been given a brand new name - the N82 Navigation Edition. However, it is priced 400 yuan higher than the silver version, and comes with a rather attractive mobile phone strap.

(On May 4, 2008, the price of the N82 Navigation Edition was 3780 yuan, while the regular edition of the N82 was priced at 3380 yuan.)

Where is the added value in these extra 400 yuan? What are the differences between the N82 Navigation Edition and the regular edition?

Please read on to find out...