MacRumors user stomer has found slides from further in the webcast that us going on right now that confirm that the announcement will revolve around “DRM-free tracks at twice the sound quality.”

From the press release: $1.29 for premium tracks (DRM-less), $.99 for standard (DRM), and $.30 for upgrade.

Just a few moments ago Dan released TwitHot.com. The site shows what links people talk about most on Twitter. Looks pretty nice.