His twin has been walking for 14 months.
She's been sitting for who-knows-how-long...
She signs prolifically for a nearly 2 year old.
Her verbal language doubles just about every day.
Parker has been saying "Hi" for about 2 days now.
He says it just like I do: high pitched, excited, with two-armed waves.
Apparently he has been sitting (again) for about 12 months.
I just ran across this video tonight. It's from June 2009.