My personal opinion: They failed because they launched big and didn't let people use it. I remember first signing up for beta, waiting, waiting, and waiting, an

My personal opinion: They failed because they launched big and didn't let people use it. I remember first signing up for beta, waiting, waiting, and waiting, and never getting an invite. I even tweeted at them but never got a response. They seemed to be only focused on creating buzz in silicon valley without actually letting people use their platform, maybe they thought that was marketing. But what good is marketing when no one can use the product? Later on they eventually opened up but it was too late. No developer likes to build on a platform that's going down.