As with others, I'd like to see the ability to categorize books somehow. Whether that's free form tagging within the desktop app or choosing from a prep-populated genre list, that feature would really help organize things.
I'd also like to be able to delete some of the pre-installed books. There are some I just won't ever read so don't want them cluttering up my book / author list. I'm told that's coming, so looking forward to that.
I'd also really, really, reeeeeeally like to be able to adjust the bkgnd/text contrast. I wouldn't want a white bkgnd (not sure if that's even possible), but a lighter grey to increase the contrast between bkgnd and text would (for me) make it much more readable. Not that I'm near the 60's range, but "Someone in their 60’s requires 3.5 X more contrast than someone in their 20’s." (
http://ergorisk.com/images/PDF/ergot..._office_w3.pdf) When I was showing my Kobo off to someone who was past their 60's the first things they wanted to do was increase the font size and "make it brighter". I was really surprised to find there wasn't an option to adjust that contrast. I think Kobo offers six or eight levels of grey, so being able to pick from those would be ideal.
I'm also eagerly looking forward to Kobo's approach to responses to user feedback. I was also an early Android adopter, and Rogers
supremely messed up their response strategy and understanding when it came to customer feedback as can be clearly seen here:
http://www.iwantmyonepointsix.com