I especially agree with point 3: white labeling is not so important. but being able to choose from some designs, or letting me provide my own seems important. And having it say "User Voice" with the logo is either a non-issue, or is a plus for users (who might be familiar with User Voice and appreciate that you're taking user support seriously)
I'd like to think it's the latter. At least that's the goal. I'm pretty sure you get better experience from companies that take the time to engage their customers with something like us.
You can actually customize your design (see http://foodily.uservoice.com/) of your site and also your widget (including the text and colors you want to have on the tab).
