All icons are made by original composer excluding:

MSN: http://en.onsoftware.com/wp-content/...ger-icon-1.png
Skype: http://www.touchmyapps.com/wp-conten...skype-icon.png
Twitter: http://hospitalmusic.files.wordpress...wittericon.png
Facebook: http://lifepurposeapp.com/iphone/icons/facebook.png
Tick: http://static-p3.fotolia.com/jpg/00/...x7Zw62Oviw.jpg
Airplane Mode: http://digital-lifestyles.info/copy_...ht-mode-lg.jpg

And others include modified from the Windows 7 icon set, etc.
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It is a UX that is scalable and dependant on the screen size and resolution:

Minimum = UMPC -- 5.0" -- 800x480 resolution (187PPI)
Optimal = Tablet -- 10.0" -- 1280x720 resolution (147PPI)
High = Notebook/TV - 15.6" -- 1920 x 1080 res (<141PPI)

Lanscape:
Minimum = 109mm x 12.4mm (Superbar size), 3 Items shown on Superbar
Optimal = 221mm x 24mm (Superbar size), 4 Items shown on Superbar
High Q. = 345mm x 36.8mm (Superbar size), 7 Items shown on Superbar

Portrait mode: was in consideration/development
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