when i'm reallly board, playing micro limit $.01 / $.02 on ultimate bet i'll play on 3 tables. Only because you can switch to a small view and watch all three tables at the same time.

On party poker when I'm playing nolimit $25 I'm only on one table at a time. Need to know whats going on with the players on the table.

If your playing two tables you may miss someone switching out seats and not notice a new player come in. (been there done that) Lost the calling station at a table and someone sat with an almost identical name. I didn't realize until 3 hands later that it was a different guy. Couldn't figure out why he started folding