yup i have this problem too. i got accepted, was able to RSVP and did. now checking the confirmation link again, it says application was rejected. glitch?
The day pass for wifi is $10? I think by 2011 (date set to be completed), a lot of people will be on mobile data plans and it won't really be worth it to pay for internet on a 30 min ride.
I think it's important to learn HTML/CSS. A good understanding of user interface will complement and affect the way you program. You should have a good grasp of how a website should "flow."
On the other hand, graphic designs is a different story. Developing a good artistic sense will take time and practice. If you plan on developing entire websites on your own, why not spend a little time to graphics design to make things look prettier? However, you don't plan on spending any time on this, then find a good designer :)