I disagree, in my opinion bitcoin need's more places to spend your bitcoins and less speculation.
At the moment there are very few commodities that you can buy with your coins, and next to no places to buy common communicates like milk, bread, butter etc. A huge percentage of the daily/weekly/monthly volume of bitcoin trades are for other currencies, in traditional money markets this usually lead's to volatility.
That's one of the reasons why ICBIT project was born. It's not for gambling. Futures contracts are more serious instruments and could be used for many things, including speculation on the price movements (for which they suit very well due to their nature - marginal trading, low fees, fast execution, etc).
Furthermore, we plan to add commodities futures too, including oil, gold, and index futures. This would interconnect the Bitcoin market to the fiat-money exchanges (thanks to arbitragers) and hopefully establish a new ecosystem previously absent in the Bitcoin world, reducing volatility.