The new UStream app for iPhone 3GS lets you record videos and post stuff you shoot directly from the iPhone to your USTREAM account, Twitter acctount, or Facebook account. After you record some videos, you can manage the videos files and choose where you want to upload them. The upload queue shows the videos that are being currently sent over the network to the service of your choosing. You can also just send the video to all your accounts at once. Best of all, the Ustream Recorder app is free. So if you have an iPhone 3GS, be sure to grab this app and give it a try.
This 3rd Party App is available at the Apple iTunes AppStore. Browse the full list of all AppStore apps filed under the AppStore category.