Alex,
My son applied last year and got in. While you're anxious you need to be patient. The 2012 application process only closed 2 days ago and last year there were 2500+ applicants. If this year's the same you can imagine it takes a little while to sort through them. I just checked and my lad got an email inviting him for an assessment on 26April, nearly 4 weeks after the original application process closed, so theres time for you yet!
Good luck