Curator - The visual notes app, now on iPhone!
digiKam - Professional Photo Management with the Power of Open Source
appealing - Mobile UI animations found in the wild
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
AuthorBee - Organize Twitter around your interests
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.