For myself bitcoins has many problems.
1. who and how makes the decision about the wallet software.
2. there are to many people with a to big amount % of bitcoins. They can crash with a sell of 350.000 the whole currency.
3. how i can build a business on a currency which isn't stabilized.
that so far
i was going to say these exact same things.
#1) the wallet is not secure at the moment, and until an EASY, SAFE solution is developed, people will have a hard time adopting BTC
#2) MtGox stepped in and "regulated" the "unregulated" currency because of the high volume sell. the economy is extremely unstable because of its nature
#3) if i were a business, i would not accept BTC. it would suck to sell one of your items, only to have your profits discounted 50% a few hours later due to market movements. investors and individuals need not worry about this, but businesses won't be interested in the uncertainty.