Facebook and privacy - how will it impact on the IPO?

It would appear that there is a growing concern over recent Facebook changes which in turn raises more general worries over Facebook's approach to privacy.  Certainly speaking to my students today, all active Facebook users (I am not a Facebook user), there is growing concern about the new changes.   Next year's likely IPO for the company must raise concerns that the company will seek to commercialise too quickly, something which Sir Martin Sorrell has recently alluded to at the recent Royal Television Society Cambridge conference.