Here is a nice thing from Doppler Interactive
http://world.dopplerinteractive.com/2010/12/3d-twitter-world-by-doppler-interactive.html
- they collect recent tweets and show them as speech bubbles for wandering little (named) characters in their 3D Tweet World
Note - you’ll need the Unity browser plug-in to see it working in browser – in case you don’t have / want that, below is a screenshot …

