the key bit is that on Pie, everything gets a mini chatroom. so every discussion is focused. we're betting that as people share more and more stuff, they'll value group chat apps that help them organize and structure all these things.

on Flowdock, Slack, Hipchat, etc, people usually talk in a "catch-all" chatroom like "Product team" or "Marketing team" which (in our experience) gets messy quickly and it can get hard to share information there. it's often a mishmash of links, files, images and conversations.

So, Pie is great if you're in a team that shares a boatload of info: links, files, etc. gives you a message board layout as opposed to one huge stream.