Ubuntu is the name of the product, 7.04 is the version.

All the symbolism is in the product name - and yes, there's plenty. The versions have whimsical animal names.

Even OS X has no particular Tiger-ishness in 10.4; it's not as if tigers are particularly renowned for having system-wide instant search facilities.

By that same measure, I'm also not aware of any inbuilt backup facilities sported by panthera pardus. I don't think they have to-do lists in their email clients, either.