We found a discrepancy in the deadline for submitting survey feedback to be eligible for one of the limited edition t-shirts. The page on MSDN I wrote (Team Foundation Server Release Candidate Survey) mistakenly had 2/17 (today) as the final date. However, the survey form states the final day to submit feedback and be eligible for the t-shirt is next Tuesday, February 21st. The survey form is correct. We just updated the MSDN page with the right date. I’m sorry for the confusion.
That said, we still haven’t reached our limit of 300 t-shirts. If you haven’t submitted feedback already, please do so soon.