I have recently read the announcement that Kubuntu 8.04 is NOT going to be an LTS release, thereby deviating from the release schedule of all the other Ubuntu variants. I believe that it would be more beneficial to synchronize the LTS releases between the official Ubuntu variants.
First of all, Ubuntu needs to solidify its public image as much as possible. This is even more important while it has such a small mind-share in the overall technology market. Most computers users have no idea what an LTS release is, and they could be confused by mis-matched numbers.