There really isn’t much to say about this. Some crazy people thought that naming a soda Ubuntu would be a wise idea because of the meaning of the name Ubuntu (humanity towards others). That’s great and all. However, there is already a flavor of Linux known as Ubuntu. It’d be like me developing any exceptionally blitzy bling bling sugary nasty tasting soda called Vista that occasionally explodes when you just look at it.
Ubuntu cola is fair trade which is good. Just work on the name. And maybe have a stronger green push.
Why is it a problem for two concepts to share the same name? The philosophy behind the cola and and linux is the same, and surely with the both of them, the concept of Ubuntu will reach more people?