This approach is actually viable with customers and I know because that's what I did recently at a Large Automotive Customer. The customer wanted to see how Lotus Connections would work with their existing Portal. Thus, I rebranded Lotus Connections by changing a couple of CSS and JSP files. Once I showed it to the customer, they thought I was running Lotus Connections inside of their portal, even though it was running completely independent. Here's a slide from the presentation which shows how this portlet works. I can't wait to see a demo of this portlet working!!