Mobbin - Latest mobile design patterns & elements library
digiKam - Professional Photo Management with the Power of Open Source
pttrns - iPhone and iPad user interface patterns
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
Page Flows - User flow design inspiration for mobile & desktop
FastStone Image Viewer - FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor.