We've been working on the high-level (not-email) communication with https://sendtoinc.com

Nope. We'd be open to, but there's not too much motivation to do so at the moment, to be honest. Just one of those things where most people are focused on other areas of the company right now.

Isn't team pretty much the same as SalesForce's Chatter? https://www.salesforce.com/chatter/

I was pretty excited when I first saw it on Dribbble and wanted to build an open source clone when I got time. I still need to get on that.

http://dribbble.com/shots/279956-What-s-up

I am currently building something very similar to this, I'd love to chat to get a feel of what people want. Send me an email hello@joshhornby.co.uk