I'm happy to see MSR India's TEM team growing steadily, recently adding Jonathan Donner.  Berkeley's TIER team has a great list of open ideas but it's noticably short on applications that incorporate cross-cultural idea.  This is understandable because design problems for emerging and rural markets have not been clearly defined.

I'm planning more ethnographic studies in the homes of the emerging middle class.  In East Asia, there are different rules to this game.  Some of the rules have been studied in places like KAIST in Korea (link unavailable).