I don't see anything coming from the split ... it adds nothing to the individual value for shareholders, especially this one where the new shares are non-voting ones. However, that said, there could be a phychological advantage with the share price coming down to around $40 per share. Normally, I would say that means nothing, too, but with Facebook a lot of retail investors might see this as an opportunity to buy in. These investors may not understand the watering down of the outstanding shares of the stock and siply focus on the lower share price and think its a bargain and opportunity to load up. With a larger investor pool, this may lift FB shares to higher levels then we'd ordinarily see without the split. There could be a windfall after the split.
I got into FB at the IPO and bought all the way down to $18.50. Basis is $26 now and it's been the greatest ride of a lifetime. Thank you Mark Zuckerberg ... I plan to keep the trip going for a while longer!