Thanks for the info I appreciate it. When you guys refer to the navigation, do you mean to select books and whatnot or to flip through pages? I did hear the K2 had a faster page flip, also that the eink display was 16 color vs 4 color. I have not heard if that yields better contrast or anything though.
I am not a huge fan of the scroll wheel but I don't actually use it much, I don't use the dictionary features much either. I wasn't sure how I felt about the cursor vs the scroll wheel, but I figure the cursor would win since it is unambiguous about what is selected.
The K2 does have some cool features, I am happy enough with the K1 to hold off but the temptation is definitely there.