Creativity & invention in a recession

If such developments as the Zippo lighter, radio and the movie industry could be born during the great depression, what are we likely to see as a result of today's recession?

I'd be surprised if developments didn't include the power of the crowd. Not only do people fall back on authentic relationships during economic downturn, but efficiencies brought about by networking are likely to be even more attractive.

It might be a little early - but i'm looking for examples or even wild guesess at inventions to come from this recession.