Today in "Proto Thema" newspaper (very popular newspaper in Greece) there was an extensive article about Varoufakis being a business consultant (partner) for Singapore's Bitcoin Tembusu. The article mentions that he already has a team of people ready to create a cryptocurrency like bitcoin, issued by the Greek Government, that could help the Government get financed by mostly its citizens and corporations in return to tax credits. The last time I saw an article in a Greek newspaper about bitcoin, the prize went from $200 - $1000.
I think they do not need to create from scratch another altcoin , Greek IOU cryptocurrency but they could simple issue the relevant bitasset in bitshares exchange. I have posted in his blog a couple of months ago about bitshares but my posts (replies in his articles) were not published. I do not have good communications skills and many times people just don't even understand what I am saying.
Maybe it would be worth if a dev or anyone else can approach him and post in his blog about what Bitshares could do for Greece and even post a business plan or proposition.Even if the reply to a post is not published, I am pretty sure that he will read it.