Very early this morning (5:15 a.m. Minnesota time) I attended a panel discussion in SL (Second Life). The early hour was due to the fact that the target audience was Europe. PA Consulting brought together a number of companies including BMW, Vodafone, and the Financial Times. These representatives spoke about their experiences in SL, and answered questions (within SL we could IM the moderator).
As many folks have probably never experienced SL, I've attached a Powerpoint file with 12 screenshots from the the event. The file is "read only"
Most panelists were in SL as an experiment, and were not yet doing formal product testing, recruitment, etc. My host however, PA Consulting, has private islands where they are running sims for customers to test product concepts.