Joost, the peer-to-peer TV sharing site has announced it has signed up one million users.

Joost, created by the founders of Skype, and funded from eBay's purchase of the VoIP company, has had a slow and slightly troubled start but could launch publicly by the end of the year.

Joost's co-creator Niklas Zennström made the announcement at Skype event, it's the first time user figures for the site have been officially revealed.

At the moment the service is still invite-only but restrictions on the number of invites people could send were lifted recently, presumably leading to million-user milestone.

Joost will be the first online, global TV distribution platform, that advertisers, content owners and audiences together in one interactive, community-driven environment.