

Update: The account is no longer listed as "verified", though Twitter had confirmed they had verified the account for Forstall. It appears the loss of verified flag is simply a security measure by Twitter when someone changes their account info (Forstall changed his profile to read iOS rather than iPhone):
For security reasons, changes made to your profile result in the loss of the badge. If you've lost your verified badge, just log into your account and re-apply here.Update 2: He's verified again.
Article Link: Apple's Scott Forstall Gets a Twitter Account