Is collaborating really a team game?

So, the notion of a Frost*ie collaboration (that went cold 3 years ago) has de-frost*ed again.
When Milliontown shook me from my musical slumbers in 2006 and as part of the euphoric period in which many remixes of The Other Me were made, I figured it might be cool to pick-up on the little piano outro at the amend of the album and see if it a further song could be made using it.
A few of the Frost*ies declared an interest in having a go at playing some parts so I figured I try to pull it together.
I made a little demo of it and apart from some cheesy arrangement (and shonky playing) it seemed to work. The mighty Sawtooth was the only other person to hear it back then and we figured the next step was for me to make a framework for people to use to record their own parts....and now, three years on, that's still the next step!
An independent question to Jem about that same outro made me realise the ball was still in my court so I posted a link to the original demo and there's a new, small, wave of interest again.
It's an idea fraught with logistical problems but I hope we can get it to go somewhere this time...unless I get distrac-...ooh, is that a cup of tea?
Getting the framework right is the hard part, it's not easy to compose an interesting, coherent piece without hearing it all.
Already, some of the feedback suggests that it could easily turn into something like one of the 300 collaborative limericks we have on the forum; i.e. You think you know where it might go and in single step it's something different.
The other problem is getting people to hear ideas and not think it's a finished thought - hard enough when everyone is in the same room.
Could be interesting. Could be troublesome.
Hmm...