I know this doesn't address your question, but I'll throw it out anyway - From someone that reads a lot, I started reading on a tablet (Galaxy Tab) and ended up buying a Kindle. Here's why:
1. The battery didn't last very long on the tablet. I had to re-charge it daily, sometimes more. The kindle goes for weeks.
2. Weight - the tablet was heavier than the kindle.
3. Most importantly for me was the e-ink display. After reading the tablet for a few hours, my eyes would get a little strained and reading outside was a bit difficult - had to get situated just right so it wouldn't wash out in the sun. The kindle can be read easily in direct sunlight.
If you are a serious reader, get a Kindle (or other e-reader) with the e-ink display. If you want to read occasionally, surf the web or check email, get a tablet.
