This is a great opportunity for people to get creative, as it is totally open ended how contestants can go about winning votes. Of course, there is the practical limitation of needing to use the desktop version of the Facebook site to access the voting form, and voters need to access the voting form via a special link. For example, here's mine ;-) Voting closes on January 3rd 2011.
To enter the competition, entrants need to click on the "Find out more" link under the C7 Contest tab, then accept the terms and conditions and click the "Participate" link. Once entered, the application allows contestants to send a message to their Facebook friends (spam alert!), as well as copying the the special URL to the clipboard for pasting into other social networks, etc.
David Gilson for All About Symbian, 1st December 2010