I hate to say this is a bad idea, but dividends signal to the market that you have no better way to spend your money than just giving it back to investors to spend elsewhere. Combining a stock buyback plan is smart at least because perhaps they can balance the two and counteract the dividend effect by buying up shares. In reality Apple could probably just become a private company by buying back most/all the public sh…
In Apple's case, what it signals may be a little worse - i.e. that they have given up on trying to find those better ways despite having had several years to work on it as the cash accumulated.
If Apple had announced dividends a year ago, before Jobs' death, it would look like Apple had a long term vision - and there was certainly opportunity to have provided dividends.
More importantly, there was opportunity to spend the money. If Apple couldn't figure out how to make a dent in $30 billion or $50 billion or $70 billion, it doesn't look like their problem has gotten any easier.