What is the difference between BitCoin, Bitcoin, and bitcoin? I've seen several capitalizations of the term "bitcoin". What do all these mean?
The following answer seems to be the consensus judging from this question on the meta site.


  
  Use Bitcoin (with a capital "B") when talking about the
  concept/technology.
  Use bitcoins (no capitalization) when talking about the unit of
  currency (4 dollars - 4 bitcoins).
  Never use BitCoin or BitCoins