Effectively it means that the graphic can be scaled in size without any loss in quality.
What do people think about the current layout? I put the badge into the background image as a ‘quick fix’ yesterday morning, to get round a technical problem I didn’t want to spend more time on, whereby the original logo of the badge plus text was being hidden behind the menubar. That is also the reason for the new style text logo. Although I say it myself, I think it looks pretty good as is.
Simon is the style expert, and I’m sure will have some input later, but he is away at the moment.