Scott Hanselman has created a way to show video on his Optimus Mini Three. Each key is a 24-bit 96 by 96 pixel LCD and connects through USB to your computer. Optimus has APIs and code examples.
Scott shows a tease code sample on how he did the video on the key.
Speaking of a video, here is a direct link to it on SoapBox.
He will be posting an article here on Coding 4 Fun on how he did it shortly so stay tuned.