New Email Templates on Google Mail

Has anyone else noticed that Gmail (Googlemail for some) now has a new theme tab in the Settings panel.

Email templates are one area of theme design that I think has been really needing a big player to popularize. Personally I really like the new email templates that Google have made available, I've got the sunset theme on my email at the moment, but I expect I'll change it soon enough.

I guess the next step is to allow HTML emails to use different templates as well. I know that the Mail program that ships with OS X Leopard has a few email templates, but I really want them to be downloadable like other templates.

Maybe I should look into designing email themes and of course I need to see what software handles email themes, but it is better to start than not.