Well, actually I think the speech was more adressed to the American voters than to the people of Germany, or Europe. Obviously there have been critics in the past re. Obama's lack of international experience, and this was to show that he's doing great in foreign affairs as well. Also, the fact that he's perceived by many over here as a "new JFK" may be a positive side effect. Well, the election will show if the US voters are really impressed by this.

From CNN:

Obama wins hearts, not minds, in Berlin

From "Der Spiegel" (German magazine):

People of the World, Look at Me

Huge Crowds Left with Mixed Feelings

'A Strong and Gutsy Message'