a press release regarding Widgets in Lotus Notes. Kevin Cavanaugh, vice president, Messaging and Collaboration, IBM Software said: "Whatever Lotus customers need, there's a widget for that."
The press release mentions two Widgets, the first one is a LinkedIn Widget
the second is a TripIt Widget
Both widgets install easy, all you have to do is to drag and drop an xml-file onto your Widgets-Sidebar, you can even drag it directly from a browser to Notes so you do not have to use the integrated browser.