There are reasons Apple market capitalization is higher, for example those numbers -

Here from finance.yahoo.com :

AAPL

Profit Margin (ttm): 15.61%

NOK

Profit Margin (ttm): 1.25%

AAPL

Return on Assets (ttm): 10.25%

NOK

Return on Assets (ttm): 4.12%

AAPL

Return on Equity (ttm): 23.35%

NOK

Return on Equity (ttm): 4.04%

AAPL

Qtrly Revenue Growth (yoy): 25.00%

NOK

Qtrly Revenue Growth (yoy): -19.80%

Apple is fast growing company in crisis, Nokia, on the other hand is not growing (blame on crisis?). Pick your numbers ;)

Just reread freaking article. It is clear - it is just local root exploit.

Yes, there is difference between hacking and breaking into house.
Hacking as those students did is rather like publishing sensitive information like SSN, credit card numbers etc.
Why it is better then breaking into house?

Here is open information:

http://en.wikipedia.org/wiki/List_of_space_disasters