If you become a Prodigits member, you can set your own wap site for free. You can add your profile information, blogs, polls, links, photos and your videos on your Prodigits WAP site. Go to http://members.prodigits.co.uk

Other free WAP site builders/hosts:
www.peperonity.com
www.wen.ru
www.winksite.com
www.tagtag.com
www.wappy.to (for redirection)
Don't forget to give a link to twilightwap.com after you finished ;)
If you want to go one step forward, learn WML (Wireless Markup Language). There are resources on web, search with Google.
Next thing to do is to register a domain name and buy a hosting to serve your wap site.
Good Luck!