So it's more a philanthropic approach ?
If you pledge a sum - say $50, I presume it's whatever you think it's worth or what you can afford? - that goes into the pot, and if enough money's raised from all the others who may want to pledge, the author throws the doors open to the ereader world.
For free ?
So the "pledgers" ( or philanthropic investors I suppose they'd be) get a copy of the book and a warm feeling ?
Or have I misunderstood the whole thing....