Google has launched a gadget for Google Talk. It works similarly to the version embedded into Gmail, but it's created in Flash, so it has a richer interface. Each conversation has its own tab, so the gadget doesn't occupy too much space. It's also easier to search your contacts and to invite other people.
Some extra features:
* paste a link to a video from YouTube or Google Video and you'll see the title of the video and a thumbnail. If you click on "Play" an embedded player will show up and you'll be able to see the video inside the gadget.
* paste a link to an album or photo from Picasa Web and the gadget will display a thumbnail and some details. If you click on "View", the photos will be displayed in a small slideshow.
* you can also add links to videos and albums in your status. If your contacts use the gadget, they'll be able to see the content without opening a new page.
* the gadget can be added to your web page, although it won't be very useful there.
Here's a video from Google that explains more about the gadget: