It's an interesting idea and it seems a lot quicker to setup a call than going through FreeConference.com. However, I'm a little more methodical and the site doesn't explain how the process works.

A few questions come to mind: - Who are you and why are you giving away free conference calls? - Will participants hear ads during the call? - Is there a limit on the number of participants? - What about international callers (btw what country is this for?)

I like the clean and simple design and I encourage you to keep it that way. Perhaps linking to a FAQ or a page with a little more background.

Good luck and congrats on the release!