Evernote has a number of add-ons and extensions for various desktop browsers, but this is the first time that the team has built any extensions for an Android browser. The first extension is Evernote itself, which will allow you to save clips of webpages to your Evernote account. But, the more exciting extension is Skitch. Skitch is an image editing and annotation app, which has been around in the Android Market for a while. Evernote purchased Skitch back in August of 2011, adding functionality to share with Evernote, but now there is a Dolphin browser extension as well. The extension does what you'd expect in allowing you to easily edit/annotate any image you come across in the browser.
If you want either extension, you can find the Evernote extension or the Skitch extension for free in the Android Market, and of course you'll need Dolphin to use them.