About Vitamin: Vitamin is a Chicago-based animation / design / photography / editing / visual effects collective headed by directors Ryan Dunn and Vince Haycock. Vitamin's obsessions range from Joy Division to Jim Henson, Kubrick to Kraftwerk, and their work reflects those diverse interests. Dunn himself is currently "spending a lot of time writing fairy tales" - some of which he hopes to be sharing with the world very soon.

Zune-Arts has also a mini interview:

Q: What was your inspiration for this piece?
A: The idea of floating was immediate and whimsical. From there, the fun was mostly in taking the idea, curating it, finding nuance, opportunity, and pushing it as far as we could. One point of reference for us was the work of Sylvain Chomet, director of Triplets of Belleville. We weren't using cel animation for this, but the sensibility of it still drew us in and inspired us to imagine our own world in a slightly different way.

[...] 

PROJECT CREDITS:
Project: Zune Arts "Float"
Client: Microsoft Zune, Redmond, WA
Marketing Manager: Peter Kingsley
Released: July 19, 2007

Concept: 72andSunny / Los Angeles, CA
Creative Director: Glenn Cole
Writers: Jason Norcross, Bryan Rowles
Producer: Rebekah Mateu
Brand Manager: Jessica Lewis

Animation: Vitamin / Chicago, IL
Music: "Hopelist" by What Made Milwaukee Famous

Vitamin Pictures
Zune-Arts

Related articles:
Interview: 72andSunny and Fulltank
Video: The Zune Planes