OK if you like Iphone cases and enjoy new designs check out kicksters website and search for OPSIDEO F4 a case unlike the rest with a unique silent switch.
http://www.kickstarter.com/projects/opsideo/the-opsideo-f4-the-ultimate-iphone-4-case-system
http://www.kickstarter.com/projects/opsideo/the-opsideo-f4-the-ultimate-iphone-4-case-system