I have been following "boku87" and his challenge on pokerstars and I sometimes also multi-table while playing poker but I feel that I lose a lot of information when I stop seeing all the tables in full screen and in my case that is 6... What I actually do is open as many tournaments as possible at the start of a session simply because during the 1st phase of the tournaments I tend to play only premium hands or potential sets, and as I move on to a diferent stage of the tournaments (and unfortunately lose some...) I tend to focus a lot more on the 3 or 4 tables I have a good chance to be in the money. When I play cash games I usually open up to 12 tables and follow the strategy.
What about you? How do you play? Do you prefer quantity over quality? Are you another boku and can do both? 
