Auto chain lubricators

Just out of curiosity, I was wondering if anyone has had any experience with these things?
http://www.cameleonoiler.com/index.php?lang=en
Seems like it would be a good idea, especially for touring, as it would be easier to carry round a small bottle of oil over a large can of lube. I'm more interested in if they actually keep the chain properly lubed, especially on a sport bike, and if they spray onto the rim or not.
http://www.cameleonoiler.com/index.php?lang=en
Seems like it would be a good idea, especially for touring, as it would be easier to carry round a small bottle of oil over a large can of lube. I'm more interested in if they actually keep the chain properly lubed, especially on a sport bike, and if they spray onto the rim or not.