Wow! You know that noise that Motorola's Droids make? The sound that is in the Droids commercials. "Drooooid" in that googledroid-a-like voice? Here's how:
Just open up terminal.app and type
say -v "Cellos" "droid"
Bam! DROOOOID! Now, replace "droid" with "the iphone is better then the droid" and give it a listen!