The Bitcoin ecosystem suffered some growing pains this week when its largest trading system was hacked. Accounts were stolen. Coins were dumped on the market. A flash crash (similar to Wall Street's) ensued as these stolen Coins drove the price down to zero (leading to a flurry of "I told you so's" ensued as people took credit for knowing that it was going to crash all along). However, that didn't happen. Mt.Gox was able to recover and roll back the erroneous trades and is in the process of helping people recover lost accounts. The system regained its equilibrium and Bitcoin is trading is at the levels it was before the crash. These are the typical growing pains you see in any complex ecosystem's growth. The system recovers and gets better.
BTW: BitCoin may be just the start of good things to come. The infrastructure that is being built around can pave the way for hundreds of different currencies, each with different characteristics and features. If so, the fragmentation of money has finally begun. Nice.