UI Movement - The best UI design inspiration, daily
Glimpse - Discover trends before they're trending
UI8 - Carefully crafted UI design assets
Widget Web - Widget Web is a handy application that allows you to view the content of web pages in a widget on your iOS device’s home screen.
UI Garage - Specific mobile and web design patterns for your inspiration
Pixel Widgets - Pixel Widgets is a feature-rich application that makes it easy for you to add custom retro widgets and select from pre-loaded widget design or create a custom one with more than 150 fonts and color themes at your disposal.