I can't help but wonder a bit about that contest either, the first thing that caught my attention was the "Dropbox Inc. is not affiliate with the contest." in the smallprint at the bottom. How can they offer a lifetime license with no help from DropBox?
Also, if you click the contest rules link, it says "Prize includes: Dropbox premium 1 year membership. Winners will receive a payment to upgrade their own Dropbox account." Are they planning to keep on sending you $100 a year? Will they do that even if you unsubscribe from their daily newsletter?
That's right, a daily newsletter, and if you press the unsubscribe button at the bottom of it, it takes you to a page trying to get you to change your mind, that reads among other things: "Unsubscribing will void all entries into the Dropbox Pro For Life giveaway."
Some more discussion about the fishyness on DropBox forums: http://forums.dropbo...m/topic.php?id=45528