If the 100M valuation for Snapchat wasn't the tipoff to the bubble, where you can delete a picture... or not if your friend takes a screenshot! Brilliant! *edi

If the 100M valuation for Snapchat wasn't the tipoff to the bubble, where you can delete a picture... or not if your friend takes a screenshot! Brilliant! *edit, these days you get 5M just for saying its beautiful so maybe the valuation is not THAT far off.