I research this a bit more and this case is as stinky as it can get.
They want to buy the Greek debt with 300BN of US bonds, some say that there is a FED agent-broker in the story coz it's kinda difficult Greek expats holding that much US debt. It gets even stinkier that the rest of the money shares of the "bank of Anatolis" or "Banque d’ Orient" if you know what i'm talking about here, this bank was bought/merged with NB of Greece in 1932.

Some people contacted the official expat community in US and they say they have nothing to do with these guys and they also said that they are watching them in the tv and laughing. Some Greekamerican news agencies in the US are going very hard on them and pretty much call them scammers.

Anyway, as i said, too good to be true with terms like 10 years interest free for Cyprus etc. If they really wanted to help, they would have loaned when there was a need just for 10BN when this crisis started.