Over the past week, JPMorgan Chase ( JPM), Citigroup ( C) and Wells Fargo ( WFC) announced that they plan to resume or increase dividends. Others, such as Bank of America ( BAC) and Capital One Financial ( COF), weren't so lucky. They remain in rehab until they are strong enough to handle the real world. As bankers will tell you, the dividend has turned into a brutal mistress. It is something that investors, especially institutional investors, have come to expect as a quid pro quo for owning shares that offer growth in the less-than-nothing range. In many ways, dividends have turned into a shareholder protection scheme. A few notes stuffed in an envelope every quarter for investors to make sure, you know, nothing bad happens to a bank's stock. Finally, Research In Motion's ( RIMM) late introduction of its PlayBook tablet was deemed the least dumbest thing of the week, garnering only 7.5% of the vote. Delays have plagued RIM's effort to catch up with Apple ( AAPL), Motorola ( MMI) and Samsung in the tablet race. The RIM PlayBook will be the fourth sizable player in the market, and its QNX operating system represents a much smaller sales opportunity for application developers targeting Apple, Google's ( GOOG) Android and even Microsoft's ( MSFT) Windows Phone 7 software. -- Written by Ross Tucker in New York.