Ron,
I disagree that deflation would be a problem for Bitcoins. Maybe it would be a problem for large manufacturers that create goods we want but not need? People will continue to purchase the things they need, but they will wait to purchase things they simply want. What is so bad about that? Sure economic activity might slow, but it will also teach people to save their money in a more natural way. If Bitcoins will become accepted it will also prevent the manipulation of the currency that is currently clearly going on with the price of Gold and Silver and our FIAT moneys. I believe the pros clearly outweigh the cons as long as the government does not intervene, which is really the question you should be worried about.