Iggy is leading the charge of "Team Tut" to help us understand how to make this virtual experience most relevant for educators. He has kindly posted some notes and suggestions here on his blog. Thanks!  Indeed, learning can be more fun and dynamic and these environments. In fact, check out this really cool graphic novel style that Viv Trafalgar made:

There are of course a lot of issues to make learning engaging. The opportunities for visual, multi-media enriched content are very exciting. Immersive, online, learning also has massive potential for interaction between people from around the world in real-time. We also are experimenting now with interactive queries to our database, er, things people can click and ask for info or drill-down.

Of course one of the big concerns is managing shared environments, so kids only come in contact with their fellow students, teachers or family. This needs to be managed securely and cost-effectively.