[orjan]

when talking about TPL, I guess you are thinking about PHP's project Smarty?
it's a great project if you want to pass data to an template and display it in different ways.

I used it on a webpage project a few years ago, and this way, the site programmers could make data available by smarty, and the design team could take the data they wanted to publish and make their own work more or less independent.

this way, we also could make the same page in different layouts for several sites, and the surfer wouldn't know we were using the same thing. (one tpl for each domain)