This is Brazilian gymnast Diego Hypolito...the only male gymnast from his country who competed at the Beijing Olympics last summer.
You probably haven't heard of him because he didn't medal. Although he qualified at 1st place to the final rounds, a misstep led to his 6th place finish in floor exercise.
That's a shame too. Standing 5 foot 7 inches, Diego is at the taller end of the gymnast stature spectrum. I believe his height adds much to the beauty of his form, and it's always a pleasure to watch an athlete articulate poetry through his movement.