Beemas can easily be posted to your YouTube account via your mobile phone.
In order to do so you need a YouTube Account. If you don't have an account create one by going to the "Signup" page (http://www.youtube.com/signup), choose a username and password, and enter your information. Then click the "Sign Up" button and you're done.
Once you have an account you can upload videos directly to YouTube from your phone using MMS. To do so, follow the steps below:
1 - Log in to YouTube from your computer.
2 - Click the "My Account" link in the upper right corner.
3 - Under Mobile Settings, click the "Mobile Settings" link.
4 - Click the "Edit Settings" button.
5 - Fill in all the appropriate fields.
6 - Click the "Save Settings" button.
When you're done creating your profile, you'll see an email address that's unique to you. By sending an MMS* message to that email address, you can upload videos from your mobile phone.
For additional help in uploading videos to YouTube go to YouTube's Mobile Help page here.
*MMS or Multimedia Messaging Service is a standard for telephone messaging systems that allows sending messages that include multimedia objects (images, audio, video, rich text) and not just text as in Short Message Service (SMS).
Source: http://www.google.com/support/youtube/bin/topic.py?topic=13742