Bwild: I just started playing on facebook a little bit ago, used to play on PartyPoker...not sure how frequently you can get more chips as I don't bust. But, I think we all agree:
1. Players must be able to get more chips if they bust
2. Player may only do so, "once in a while". Once a day is the max, but I think shorter time periods would be nice.

Personally, I think 3 per hour is too frequent. Nothing more boring than sitting at a table when someone just goes "All In" on every hand...knowing they can get them back whenever they want.