Myself, I think the use of the "bitcent" terminology should be discouraged. I've laid out my rationale in other threads, but I'll do it again:
Human beings are not particularly adept at dealing with large numbers and/or great variations in orders of magnitude. Nevertheless, in the West people have been educated to group orders of magnitude into threes: thousands, millions, billions, etc. Now, Bitcoin currently has 8 decimal cases. This means that further subunits will be demanded even if the term "bitcent" becomes widely used. These may be called millicents, microcents, or whatever. And herein lies a huge potential source of confusion, since we would have a system which would mix two different groupings for orders of magnitude: a two-order grouping (1BTC = 100 bitcent) and a three-order grouping (1 Bitcent = 1000 millicent).
If you still don't see this as a problem, try to answer instinctively (and correctly!) to the following question: "How many Bitcoins in a million millicents?". Do you understand now why mixing different order of magnitude groupings within the same system is a recipe for disaster?
Hence, I propose that instead of talking in bitcents we encourage the use of millicoins, microcoins, and nanocoins. That way the entire system relies on a single three-order grouping.
Well, the term millicoins is fine with me too, I wasn't really pushing the term "bitcent" at all, I was only pointing out that a person is much more likely to pay $1000 for 1000 millicoins (or 100 bitcents whichever catches on), instead of paying the same amount for 1 bitcoin even though it's the exact same amount he's getting. Thats how the human mind works, and it would be good if there was an official term so it would be used consistently by everyone. Why not have a poll about what term should be official?
About your question "How many Bitcoins in a million millicents?". The thing is that your mixing terms with "millicent". It has neither the word "bit" or "coin" in it, because is just a prefix and a suffix and nothing else. "Millicent" could just as well refer to american cents because the term has no connection to bitcoins. So only either prefixes
or suffixes should be used but
never combined. So the use of either 0.01 bitcents or 100 microcoins are acceptable to me, but
never 10 millicents.