If you look close you can see that he is starting to get his second tooth in. I don't know if you can see it or not by these pictures because there is always a tongue or a pool of slobber in the way. He always smiles when you try to look at them though because he likes to show them off.
This may give you an idea of the size of this kid.
He is adding new things to his list of firsts all the time. We got a bike seat for him and he absolutely loves it. We ride over at the state park some, but that is pretty bumpy and rough. We had a day off for spring break so we went to a bike trail that they are in the process of building from Richmond to Williamsburg (about 60 miles I guess) that they have finished about half of. It's paved and very nice so we went and rode there. We rode about 15 miles and he couldn't stop laughing and smiling. He loves being outdoors - he's his father's son. The honest reason he is not smiling in these pictures is because every time we stopped he started to fuss a little because he wanted to keep going.