Here's an irony for you: Over the weekend, I decided to create a new Starbucks cup sleeve for ebooks (
check it out here if you're interested... it's FREE). I wanted to include most of the common logos associated with ebooks out there, including many of the predominant formats. (And yes, I put my ePub logo in there. I may change it out later... depending on what we see tomorrow!)
When I went searching for the logos, however, I discovered that few of the various ebook formats were regularly using a format logo anymore... there were few sites you could go to and download a clean version of the logo to use elsewhere, web pages either barely or did not present them, and the few that were evident were often very small renditions, more page decoration than branding.
Most of them are simply using the name for branding, or in the case of companies like Sony and B&N, simply adding the word "format" to their existing brand name.
So, at just the time that the IDPF is presenting a logo for their format... format logos are already "so last year"...