[johndevor]

money laundering or black market trade

Moving money across borders is an use for Bitcoin as well. If you're living in Iran (or North Korea or Syria or Palestine) Bitcoin could very well solve your liquidity problem, in the same way the TOR network helps to solve a government-imposed-firewall issue.

[maxerickson]

How many ways are there for the people accepting the currency in country to get their hands on bitcoins?

I guess they could also act as an intermediary for people that want to send money in. Might need some deep currency reserves to play at that though.