If you are a member of PMI you can access the book about WBS online (logged in) and there are quite a few examples of WBSs for different scenarios. Unfortunately there is no 1:1 example for a product launch but it took me 30 minutes to figure out a solid WBS for my own project which was also not covered by the examples.

These 30 minutes are a good investment as you get to know more about WBS which actually helped me moving forward.

For copyright reasons I cannot simply copy it into here.

The book is called "Practice Standard for Work Breakdown Structures - Second Edition" (ISBN 10: 1-933890-13-4)

Try Glen Alleman's blog Herding Cats.

Here is the WBS search results. http://herdingcats.typepad.com/my_weblog/wbs/ One of the top entries is a link to the US DoD reference guide for the WBS.

Here is a generic checklist for a product launch:

http://www.npd-solutions.com/launch.html