According to bloomberg deposits under this freshhold will be taxed with 6.75 % deposits above that with 9.9 % to finance the bail out. This decision is just another in a never ending stream of bad decisions that is dragging the EU downhill. But this might just be a breaking point because it shows to the citizens of the other countries having trouble that in order to save their deposits they need to get them out of their countries. Germany is save, so I expect an ever growing money inflow from Spain Portugal and Greece.
Today bank runs can be rather quiet. It wasn't in Cyprus though where people tried frantically to save their money. It will be and was in Greece. With opening a deposit in another European country or even Switzerland for that matter loosing up to 10 % can be avoided. This can today be done online no more lines infront of banks. It can also be better organized. Just tell your 400 Facebook "friends" that you have opened a deposit with Deutsche Bank (actually it would be better to say you have undertaken measures to save your money) and within minutes your's and other people's message will spread to most of the country.
Here is what I think will more likely than not happen: a bank run in Cyprus
tl;dr: A haircut for depositors under the 100,000 € freshhold was an all around horrible decision which will probably cause a bank run in Cyprus that might just spread to Greece.