I've heard mostly from conservatives that Barack Obama delivers general speeches without many specifics, but I guess they haven't been paying attention to McCain's speeches. Look, many politicians make general speeches and some do offer details, as I think Sen. Obama has done. Their speeches also reveal their philosophy about government, priorities, and the vision for the future. Don't tell me that you haven't noticed a real & profound difference between McCain and Obama!
Check this video and tell me if you don't see something that distinguishes Obama from his opponent. I see a fundamental difference of view regarding the role of government: to protect and empower the people, especially those who are denied equality of opportunity by the system as it exists in the US today.
Now, the progressive community has to maintain its momentum and apply pressure on Mr. Obama to uphold the principles he articulated during the Democratic selection contest. Here's a letter, published in The Nation magazine, titled, A Change We Can Believe In.