Think modern iconic technical music equipment logos....
A shield symbol portraying the download into an existing bowl - created by two 'commas-as-smiley-faces' Modern font in an italic style with dark blue gradient and a warm grey gradient.
A strong modern logo for 2010. If you like we can add a Pictorial mark as well - headphones, play button or so, but I think the wordmark is sufficient. I can see this as a tag, alongside with DVD, CD, Dolby and all the other tags.