Google rolled out another nice feature in GMail 2.0 to allow you chat with AOL Instant Messenger contacts. The new AOL Messenger support lets you to log into AOL account to chat with your AIM buddies right inside GMail.
You can log in to AIM through Gmail by selecting the option Sign into AIM available in the chat status menu as well as chat settings page.
When you log into AIM through Gmail all your AIM buddies will appear in the chat list along with the Google talk buddies. The chat conversation with your AIM buddies is stored in chat history similar to Google Talk chat history.
This features seems to be available in GMail but not in Google Talk desktop client or Google Talk web gadget. Also note that Gmail 2.0 user interface is available for selected users in selected countries.