I realize we have a tentative date for the Bionic on August 4th but where is the Galaxy S2 (Function??? crappy name!)? I did some searching and found the news report below. It provides a very good overview of the devices and best known specs. Personally I'd wait for the Galaxy if it were a few weeks out but the Bionic will be tough to pass up.
Is Samsung Galaxy S2 Preferred Over Motorola Droid Bionic? - International Business Times