How many can I mine per day with 750KH/s

0,5 and less,difficulty goes up to sky !
Thanks. There's a boat I missed - I was under the impression that it would launch when they dropped them from the sky

People are saying that they will be dumped massively when the Icelanders get there share, but I don't see why. Many won't even be bothered to do anything at all with them. All that will happen is that the local geeks may try to buy a few of their neighbours.
I can see people using them for a lot of person to person exchanges. Like I owe you $50 from last year, or one guy picks up the check at lunch and the rest each throw them an AUR. Perfect for craigslist type transactions too. Getting setup to turn the free AUR into actually currency is going to seem like a pain for the average person, I suspect a lot of them just circulate.