A first post by an AC that's actually useful. That's a FIRST.
"More" as in "I have more data on it"? Or "More" as in "I use that storage medium more often"? Nowadays, most people use SSDs more often than spinning disks, on their tablets/smartphones; but they're more likely to have much more data on spinning media.
From the same time frame, the encore (B&N Nook Color) is 100% supported on CM10.2 (or Android JellyBean 4.3):
I installed Kubuntu
That is your problem right there. Kubuntu is a terrible KDE distribution, possibly the worst out there. You'd get better performance, memory usage, features and stability from any other KDE distro.
Neutrinos are into physicists.