Have sucessfully been using Samsung-tools and samsung-wireless on my N210 with Ubuntu 10.10. Have just updated to 10.10 64 bit.
samsung-tools worked perfectly but samsung-wireless refused to work. I tried many fixes suggested here and elsewhere but no joy.
Followed the instructions here http://ubuntuforums.org/showthread.php?p=10489952
This involves removing samsung-wireless and deleting any other kernael based r8192e drivers from /lib/modules. Then downloading the latest realtek driver and using make to add it to the kernel.
The driver is the exact same version that voRia recently added to samsung-wireless. I don't know why building it directly worked but it did for me. Using the make command for the first time was much less daunting than I thought it would be :-)