Little late for them now, considering they can only withdraw 60 Euro/day.
it's not like everyone there is poor now, i'm sure some rich guy are investing in bitcoin with their "money under their pillow" in case the situation will be more critical
They are interested with Bitcoin mining, a bunch of new miners will born.... 
i believe they know that it isn't profitable, at best they could go with altocin mining, or build their own altcoin
Why would the people with euros under the pillow invest in bitcoin? The euros are just as good as they where a month ago and will be good next month. The greeks problem is not lack of money or worthless money but problem with sirculation of the moneys. Bitcoin would not help them at all.