I Think people will choose the n78 above the n82 because of the cooler design of the n78. On www.n78.nl you can see some examples of it

I think your right. The N78 has a much more better design than the N82.

you can read a review of the n78

I upgraded to the Nokia N78 on O2 and have had the phone for a week. Here are my impressions:

Build quality: Disappointing. You may have read other reviewers’ concerns on the thin plastic back of the phone, and I agree. The back does seem cheap and ‘plasticky’, and the phone ‘rattles’ on vibrate. The back light can be seen through various cracks on the sides of the front plate.
The keypad: Personally, I like it and had no problem with the bar-type keys. However, the placement of the ‘c’ button makes texting v awkward and uncomfortable.
Design: I love the design. It is sleek, quite slim, and understated.
Nav-key: The D-pad is touch sensitive and works (or is supposed to) in the same way as the iPod click wheel. In reality, this is just a gimmick with little practical use. It simply doesn’t work well enough to make a difference.
Overall: 6/10
I was v excited about this phone, and have waited months beyond my upgrade date for it. But upon delivery, it disappointed me to such a point that I have returned it, cancelled my upgrade and await the release of the 3G iPhone.

Hope this helps.

Things I don’t like in Nokia N78 is it don’t have the best call quality, nor did it produce great pictures. It’s also expensive. But As with all Nokia N series smartphones, the Nokia N78 impresses with its high-end features, especially the new geotagging tool,

cool review! Like the N78 :)

nice phone i am going to buy it in few days, so its great to see a review.
Thanks

Wow, very cool phone, I have used it for few months, it rocks baby