Instagram on being bought by Facebook:
“It’s important to be clear that Instagram is not going away. We’ll be working with Facebook to evolve Instagram and build the network. We’ll continue to add new features to the product and find new ways to create a better mobile photos experience.”
They always say that. Gowalla shut down after Facebook bought them. There isn’t a need to keep two independent photo networks up at the same time. Facebook acquires for talent. I expect Instagram to go dark in less than a year from now. I’ll be shocked if it lasts more than 9 months.