According to NFL.com, Matthew measured in at 6'2 1/4" and weighed 225 lbs. He will not lift or throw at the combine, but he will do the other workouts. He will throw at Georgia's Pro Day on March 19.
NFL.com posted a couple of videos of Matthew. In this one he talks to Adam Schefter, and the other one is of Matthew and fellow QB prospect Mark Sanchez talking to the press about getting the combine underway.
Here are two more videos of Matthew's press conference. The first one is from a FalconsLIFE blog. The second one is from The Seattle Times. In it Matthew and Sanchez share a lighthearted moment when Sanchez unexpectedly joined the media in questioning Matthew during his interview.