Mockups Design - Mockups Design is the most leading web-based application that comes with a vast collection of creatively design mockups for all kinds of products and devices.
Mobbin - Latest mobile design patterns & elements library
Mr. Mockup - Mr.
pttrns - iPhone and iPad user interface patterns
Pixeden - Pixeden is an all-in-one premium design and web resources platform that provides high-quality graphic design templates and lots of other files.
UX Archive Animated - iOS apps animated user flows