Ubuntu 12.04 Countdown Banner Contest is now open for submissions.
3.optimized png, gif or jpg, or
4.iframe containing interactive content (using static html, css, js and images – no PHP)
5.no flash – must work perfectly with only free software
6.A successful implementation will countdown the days from Beta (aprox 30 days out) to final release. This means 30 images numbered 30 to 1 plus one for day 0 that says “coming soon” and one more that says “it’s here” (32 images total).
Visit Countdown Banner Contest page