LiMo white paper: Mobile open source economic analysis

It's a basic summing of contributions using the COCOMO counting method to see how much it would cost to develop certain projects from scratch - there's very little "analysis" there at all and most of the stats are from ohloh.net's monitoring of codebases.

And the basic gist is "a lot".

But then, anyone who can read past "the corresponding cost of presumed beneficial unleveraged potential" is probably going to find it interesting.