Twitter: After the iOS4 … Brendan Loy (Twitter/FriendFeed) July 20, 2010 July 20, 2010 1 Comment on Twitter: After the iOS4 … After the iOS4 update (4.1 4.0.1), I can actually turn my iPhone’s volume all the way down to zero, using the volume keys. Yay!
Did you sign up for the developer program or do you mean 4.0.1?