I tend to think Bitcoin is in a very early stage still, and unfortunately cannot work in the coming collapse of our countries.
Think that the value that people (at large) assign to Bitcoin is the value of the exchanges, and the exchanges need the current banking system to be able to work. This is the only way at the moment to spread adoption and usage.
If Greece collapses, the banking system goes out the window as well, so who would have a way to objectively determine the value of a bitcoin? What good would it do to get a 100$ quote for a BTC on Tradehill, if I cannot actually execute this trade because fiat money cannot be moved around since banks are closed for business.
It takes years of wide adoption for a new currency to get a balanced fair value on the market. We've had this in Greece with hyperinflation after the German Occupation in WW II. People were giving out a gold sovereign for a pair of shoes or half a dozen eggs, because they could not negotiate prices, since they did not know what the fair value of gold was.
So, all in all, this is a nice thought, but like our bailouts it's "too little, too late". And Jaime's post above shows exactly how we are being treated (no offense to you Jaime). Last thing we want is another bailout, from Bitcoin miners this time.
All those who are "saving" the country right now, are in it for the sweet deals.
We might just as well get a hard-backed currency and give up our Internet connectivity. Simple and tried.
In any case, time will tell. I might be wrong.
I am thinking of proposing to the admins a Greek subforum, I just don't have that many posts to support my position.