Eddy,
With due respect,The Nokia 6210 Navigator is a good phone,
but for 10k , its much more better to buy the the C3.
For these reasons,
The 6210 is good in Navigation, with good maps, i once went to Nyeri with it and enjoyed the maps greatly.
The 3.2 megapixels Camera is superb.
The Plastic Casing,looks cheap.
The battery life is very low, can finish a day and a half.
Receiving mails with it is n't interesting.
C3 looks great, business wise and design wise.
But 6210 is also good.Go for it