The wireframe icons have been updated to add a bunch of new icons and crop the PNGs to 16 x 16 px. Still recession priced at $10, with lifetime free upgrades. If you own this set, go to your account page and click the "Files" link.
New icons: home, currency symbols, light bulb, hour glass, bell, rubber stamp, text tool, drawing tool, layout, calculator, medal, ribbon, puzzle piece/plugin, key, asterisk/new, wand/wizard, music, exit, pagination arrows, mobile phone, iPhone, happy face, and sad face.
For those new to this icon set, the icons are meant for creating wireframes, grayscale user interface design schematics. The downloadable file gives you an OmniGraffle stencil and a folder of PNGs.
Find out more about the wireframe icons.