It's interesting to know that Mark Shuttleworth, the founder of Ubuntu, a billionaire tech genius is not only tech savvy - but an economic guru as well. Here is an excerpt of his analysis:
Mortgages are just the beginning.
At real rates of interest, with real expectations of a reasonable rate of return, many of the deals which have been done since 2003 just do not make economic sense. Thus far, the spotlight has been on one piece of that problem - bad mortgage loans - but I think we’ll see the problem areas expanding rapidly to include a lot of the private equity deals which were done on the basis of free money between 2003-2007. I remember a fatuous statement by some private equity genius that “everybody’s rushing to do the first $100bn deal”. Well, the chickens are coming home to roost. Expect a steady flood of announcements of setbacks, restructurings and bankruptcies as companies that were bought with borrowed money turn out to be unable to service their debt.
More here: http://www.markshuttleworth.com/archives/220