Hello Human Icons - Royality free icons, coming soon. Look good.

• The Friendly Clip is a javascript bookmarklet is a user-friendly way of overriding Web Clip icons.
• “Alex” has made a few WebApp icons.
• Pixelspread has some great looking ones too.
• Here’s another link, including a WebApp icon for flickr.
• Iclypso seems to be a site devoted to custom WebApp Icons, but only has a few so far.

Dan Dickinson shows how to create a custom icon for your website that will show up in the Springboard when a user makes a “webclip”, using their iPhone or iPod Touch. Basically you use create a 57 × 57 px PNG with the name “apple-touch-icon.png” at the top level of your server. Otherwise your iPhone or iTouch uses a screenshot of your site as the default icon. [ via DaringFireball ]

Update: Some are recommending that you make the png 158×158.

These free icon sets don’t appear bad at all. 16×16, 24×24, 32×32, 48×48 pixel 32-bit transparency PNG format and 128×128 pixel Photoshop’s PSD image format.

Some great icons and wallpaper “devkits” I especially like the Button Devkit.