Google launched Gmail in 2004 after hearing one frustrated emailer's story. Many years and iterations later, Gmail team is still open to listening to your stories and feature suggestion/improvements.
All you need is a story about how you've used Gmail and a video camera. You don't even need to be creative; you can just tell it like it is. But if creativity is your thing (and we know you have it in you after all the awesome submissions we got from our last collaborative video), feel free to spice it up however you'd like. Just make sure it's 30 seconds or less and submitted by December 31st. Go to http://gmail.com/yourstory to find directions on how to submit yours.[Gmail Blog]