I don't know how popular a service like that is going to be.
I'm doing something similar at the moment - a combination of Twitter client for j2me phones that beside normal twitter functions allows taking photos/videos/audio recordings and a web site to display recorded material.
I've been live for about a month, and surprisingly I'm not seeing many users recording videos. Most would use it as a normal Twitter client, and some maybe will snap a few photos.
I'm doing something similar at the moment - a combination of Twitter client for j2me phones that beside normal twitter functions allows taking photos/videos/audio recordings and a web site to display recorded material.
I've been live for about a month, and surprisingly I'm not seeing many users recording videos. Most would use it as a normal Twitter client, and some maybe will snap a few photos.