This page details pre-release information and/or media for Xbox 360.
2004 AKQA Dashboard Prototypes#

Multiple prototypes were designed and programmed in Adobe Flash by AKQA when creating concepts for what the dashboard would look like. The actual prototypes themself are currently not publicly available, but images show what they looked like.
"Concertina"#
Concertina is the Dashboard style which would eventually become the final "Blades" design used for the dashboard.




Later version that resembles more the final "Blades" design




"Loop"#
Loop is a dashboard prototype featuring a 3D ring which takes you through all of the consoles' menus.


"Organic Interface"#
AKQA Proposal of an "Organic Interface" that ended up inspiring part of the final Blades design.





Robert Stein III Concepts#
Robert Stein III was a 3D Artist working in-house at Microsoft from 2001 to 2007 and is mainly known for his contributions to Windows Vista (At this time codename Longhorn); however, he did create conceptual designs for the Xbox 360 which can be seen below.


AKQA Dashboard Concept designs from December 2004#

More closer to the final release compared to some other designs but still contains some noticeable differences. For example, this concept contains three blades instead the four that the 360 launched with.
(Source: digiex.net)
2005#
An early "Blades" dashboard concept with noticeable differences such as still using the old Xbox Live logo and a slightly different font and color scheme.
The Xbox 360 was also showcased at GDC 2005, only the guide (with a completely different theme) was shown.
Early console design/artwork#

(Source: vandal)