I was just reading a post on PinStack about a new video channel application that has just been released for BlackBerrys. Umundo works like a channel or an RSS feed that automatically downloads video feeds to your phone. With this application you can also capture videos from with your phone upload them to the web and share them with your friends on social networks such as myspace and Facebook. In order to share your videos you do have to sign up for an account. You can either subscribe to one of the top rated channels available from the video feeds or search for a video of your choice.
Umundo Mobile works on all mobile phones based on J2ME platform and having GPRS to download the application to your blackberry point your web browser to www.umundo.com/mobile But it is also available via wap.GetJar.com with your BlackBerry browser -> Quick Download -> enter Quick Download Code 30388
So far I know it supports BIS-B but it seems to be having some issues installing on some devices.