Interesting - the infrastructure can't handle a wide public announcement until the difficulty is high enough to prevent all the blockchain forking.
Solution is to set the starting difficulty high enough to prevent early adopters from making easy fortunes, but low enough to not be a barrier to entry.
I wonder what the magic number is.
I'd say probably at least 100K. That would take an average of about 7 minutes or so for 1TH to generate each block.
Whoa there, remember I0Coin adjusts difficulty for every 5 minutes. A difficulty of 1 is fine, you'd solo just as much or even more because everyone else is in your situation.