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At PDC10 as part of the keynote, Scott Guthrie showed off the soon-to-be-released Silverlight Performance Analysis tool that would allow developers to profile their Windows Phone 7 applications and identify bottlenecks in frame rate and CPU and relate that back to specific storyboards and even Visual Tree elements.
This post provides screen shots of the tool and suggests a possible release date:
http://www.shazaml.com/archives/silverlight-performance-analysis-tool-coming-soon
This post gives needed details about the yet-to-go-public Panorama and Pivot controls. These can be found in the interim bits for those with special pre-launch agreements.
Jeff Wilcox – Looking ahead: Panorama and Pivot controls for Windows Phone developers
Easily get started creating Windows Phone 7 applications using the Caliburn.Micro framework and this Visual Studio project template.

More details at:
Visual Studio Project Template for Caliburn.Micro WP7 | SHAZAML!

Windows Phone 7 UI Pattern for Pivot Views:
WP7 UI Pattern: Pivot Views | SHAZAML!
Post that describes the a Windows Phone 7 pattern for layered panoramas:
WP7 UI Pattern: Layered Panorama | SHAZAML!