Hi all,
Here's a very recent case study that you might like to explore.
Nintendo is due to release Tomodatchi Life in the US and Europe in June. This has been a massive hit in Japan, and looks like it will be here too.
You play the game with your Mii, an avatar (in game representation) of you. I think it is a bit like the Sims. You meet people, have fun, and invite avatars of your friends ...