http://www.autocadws.com/mobile Autodesk released AutoCAD WS for iOS devices (iPod touch, iPhone, and iPad). The free app allows you to “view, edit, and share your AutoCAD drawings on the go.”
Converts bitmap images to vector images. Upload a bitmap and immediately receive results in EPS. SVG, PDF, and PNG formats. http://vectormagic.com/
www.pixlr.com Pixlr is a free online image editor. Kindof like Photoshop, but free and online.