E65 is more targeted for the different crowd: more practical, biz-type than multimedia, demanding gadgeteers. It's quad-band w/ WCDMA and WiFi but little more slimmer compare to N80. It doesn't have high pixel camera but it's more practical, promise to have longer batt. life w/ the 1000mAh capacity BL-5F.
However, as all other models, I'd wait for the price coming down a bit first. Jumping to get it now is pretty impulsive.