I was able to use my iphone with my router last time we stayed at OKW, but this time I'm having to use the 3G connection, which btw, is a much better signal than it was last year at OKW.
No dont use your Iphone with your router, use your Iphone as a router. Jailbreak it and get mywi. You will just use the 3g connection and it will allow you to connect as many laptops to it as you want.