Daneel Ariantho wrote about it on his blog. Linden Lab is working on something really unique.
But if you want to know what Second Life would be like in reality, check this out:
Second Life, the virtual world and medical education:
- Top 10: Virtual Medical Sites in Second Life!
- How and Why to use Second Life for Education?
- Scientific Events in Second Life?
- 23andMe in Second Life: LIVE
- Nature’s role in e-Science: Second Life conference LIVE
- Famous Scientific Bloggers in Second Life: LIVE
- SciFoo lives on in Second Life: Web 2.0 and Medicine