Apple's Beats brand in April unveiled the Powerbeats Pro, a redesigned wire-free version of its popular fitness-oriented Powerbeats earbuds.
Macworld San Francisco: Covered Banners, Early Shipments
They even managed to get a blurry photo of a presentation, which appears to be showing GarageBand:
Full gallery available: Part 1, Part 2.
Meanwhile, MacNotes.de posts their gallery of Macworld Expo photos. They had arrived at the Apple Store as they were unloading a shipment on Friday night. One of the packages was marked "Visual Merchandising", presumably for Tuesday:
Meanwhile, the "Something's in the Air" banners have generated an enormous amount of speculation about what Apple might be introducing at Macworld. Johncarync points out the banners Apple has posted the past few years (Life is Random, iPod banners, The first 30 years were just the beginning.). t0mat0 compiles all the varying possibilities discussed in the 800+ responses. There has been suggestion, however, that it is simply a hint to the name of the upcoming thin portable.