Xinbox Online Email Cloak

Does anybody have any experience with X-Inbox? Instead of putting an email address on your website, you can offer a link to a secure-form.

From http://xinbox.com/ :

XInbox.com is a unique free solution that does not let spam into your mailbox. The principle of its work is really simple and effective: you register your email address at XInbox.com, then you get a link to the spam protected contact form like this xinbox.com/support and you leave this link everywhere instead of your email address: on your site, in the signature of your messages, in forums, etc. Special software called ''spam spiders'' cannot harvest your email addresses from this forms, so it provides your mailbox with almost 100% protection against spam.

It seems like an interesting concept if the owners of XInbox can be trusted. I am sure it's another start-up hoping to make it big and get a million dollar buyout from one of the big boys. But, you never know. Anyone using it?