For those you can't make it, I'll try to have a copy of the interview up on YC's blog by the end of the day!
I have a business plan where I send out a dollar free to anyone who logs onto my site. With $5M of funding from YC I think I could also get 4million 'customers'
As it stands I use dropbox for free. When they/or their vc decides to start charging me I will switch to the next free competitor, this is not a business model.