volatilegx - 1:47 pm on Oct 6, 2007 (gmt 0)

The robots.txt is a non-issue because the URLs will be the same.

You can't exclude the co-branded URLs because they are the same as the main URLs. Also, for the same reason, there are no duplicate content issues.

This also isn't really a SEO related cloaking issue since the content will be basically the same, the main difference being layout/graphics.

The only way this would be an issue for search engines is if you did use redirection instead of cloaking (note the semantic difference, it's important), because then you would indeed be using different URLs and might have duplicate content issues. In that case, you would exclude the co-branded URLs.