I think I'm a serious nerd, last night I had a dream about writing scripts for a Metaplace game and thinking "Wow this is so great!". The game/service hasn't even come out yet and I'm already dreaming of writing code! I'm way too excited about this. Sean Riley, lead programmer at Areae for Metaplace has made a pretty insightful blog post about their goals and philosophy of scripting in MetaScript. It is a must read for any would-be Metaplace coders, and gives great insight into what we can look forward to in creating our mini virtual worlds.
I have to say as a Python junkie, I am a little saddened that they didn't go the py route, or even Ruby, but Lua isn't so bad. I did a little work with Lua in some Warcraft mods I wrote and it was alright, so I am still pretty jazzed about the whole thing. And really I shouldn't be surprised the game industry as a whole has been Lua crazy and for good reason.