Google has released a newer version of Google Talk. This one allows you to leave Voicemails.
File and photo sharing in Google Talk works like you'd expect: Simple, fast, and fun. Simplicity means that you can drag and drop one or more files directly onto a chat window. As soon as your friend clicks 'Accept', the bits will start flowing. When the transfer completes, the recipient can open the file or find it on disk with a single click.
File transfer is fast. Google Talk makes a direct connection to your friend's computer whenever possible, enabling the fastest speed available. And even if your super-secure firewall won't allow a direct connection, we'll still get it there at a decent speed, because we're nice like that.
Photo sharing is fun! When you drop up to 10 photos on Google Talk, smaller previews automatically appear right inside the chat window, so you can chat about them right away. The previews adjust to the size of your chat window, so just enlarge the window when you want to see more detail. To view the images at full size, or to save them for later, click the 'Download Originals' link.