Hey iphone & google calendar users

What do you use for working with google calendar on the iphone?  There's no app from google and the web interface via safari on the phone is horrendous.  I see a couple of third party apps that claim to do it, but I'm curious to hear from someone who is actually using one.

Update:
http://www.google.com/support/mobile/bin/answer.py?answer=138740&cbid=-1satm1l2kjzq5&src=cb&lev=answer
That was easy.