[wowelster] PhotoTwitter. This application allows you to take a Snapshot using your iSight and post the photo and your text on Twitter.
Some related posts from Technorati and Google.
[the least significant bit] PhotoTwitter: Users can receive updates via the Twitter website, instant messaging, SMS, RSS, or through an application. For SMS, currently three gateway numbers are available: short codes for the USA and Canada and a UK number for international use.
Reflected tags on Technorati: Blog, Wiki, Openpedia.org