Thats because they both link to the same thing.
As far as differences here is what pops out the most to me on the NV10 and 11.
-More focal range with the NV11.
- Larger LCD on the NV11.
- Higher ISO shooting on the NV11. (Nice for dimly lit concerts, etc)
- The NV11 allows you to use up to a 4GB storage card while the NV10 only allows 1GB. And considering the price of SD cards nowadays having a 4GB card is fairly cheap and cost effective.
-The NV11 has a manual focus, which is better sometimes in lower lights when the camera has difficulty finding the focal point. The NV10 only offers auto focus.
A lot of these features you can probably live without, but I personally like Samsung cameras and have bought one for my girlfriend and my dad. I even sometimes use my girlfriends when Im too lazy to take my crap out and lug it around. Personally, Id go with the NV11 and invest in a large memory card.