Boys toys retailers I Want One Of Those are giving away an iPhone 3GS every week for 10 week in their “Things We Didn’t Know” competition.  To celebrate the launch of their iPhone app of the same name, IWOOT are asking you to become a fan on their Facebook page, and leave a message telling them something they didn’t know.

As far as I can tell this means interesting facts – but it doesn’t specify, so I’m sure you could tell them what you had for breakfast if you liked.  I’m not sure you’d win though…

More details, and entry instructions on the IWOOT blog.  Good luck!