The pre-oiled Teak option is ready for exterior application however the Raw option needs a protective coating applied first.
Where abouts are you located @herno
where can I buy this product I am in Qld but it doesn't show up when I search the store?
You might like to check out our range of Castelation Cladding which will allow you to achieve the same look as @ProjectPete's benchtop. From that range, it appears 81 x 26mm Castelation Screenclad is a close match.
Pete also mentions that he's a big fan of the half-dowel styling. You should find this guide useful: D.I.Y. Dowel feature Wall.
Bunnings have some great options via Cedar Sales and Glosswood @artrato3, and the half-dowel design as Mitchell suggested is a nice way to go and readily available from Bunnings. If you specifically want the Bamboo S-Panel profile I've used, I can get you in touch with your local supplier - just shoot me a private message.
Let me mention @ProjectPete, so he is alerted to your question. However, it doesn't appear that Pete has included images of any splashback in this discussion. Were you referring to the island panelling? Or perhaps were you referring to the splashback featuring in his VJ panelling discussion?