Slurl.com - Direct Teleportation to Second Life

Slurl is a new service which provides location based linking for the popular metaverse SecondLife. If you already have Second Life installed clicking on any location on the map will automatically teleport you there. For non-Second Life denizens, the site offers them a chance to sign up rather than getting an error message when clicking on links that begin with 'secondlife://. Creating your very own Slurl is simple: all you have to do is link to Slurl with your SL location. To customize window content (changing the title, editing the window message, changing the window image) you may add query strings.

"SLurl provides direct teleport links to locations in Second Life. If you have Second Life installed, clicking on the map link will automatically teleport you to that location in-world.
In addition to allowing customized control over mapping locations in Second Life, SLurl also provides a better experience for web users who don't have Second Life. Instead of getting an error when clicking on web links that begin with "secondlife://", visiting a SLurl link gives potential new users a chance to sign up."

For frequent users of Second Life, and even those who use it casually, Slurl provides a practical little shortcut. It's pretty easy to achieve, and it will get you to your destination faster. For newcomers, this makes SL more approachable as they aren't automatically locked out of SL based sites. Also expands the possibilities of SL incorporation and therefore viral effect throughout the web

How useful is this really? How well does it work, it doesn't seem to bring up a chance to join but you still get the error message. Is there really such a need to be immersed to get to know a place?