For everyone who is looking at buying the Thunderbolt from Wirefly there is a $25 coupon code for liking them on facebook. I just spoke with Bob from Wirefly and he said that the coupon will show up tomorrow for the people who like them.
My friend was telling me about this as well. I believe it is a cashback coupon, i.e. don't wait to preorder because this $25 credit comes much later in the process.