This will be the new direction in VC funding..in my opinion
Here is a great story as well related to this http://www.nytimes.com/2006/11/09/technology/09venture.html? pagewanted=1&ei=5088&en=550d24cae21caac0&ex=1320 728400&partner=rssnyt&emc=rss
I don`t think there are hidden requirements. at least w/ the Charles River program..I think they are trying to employ a new direction in building a relationships w/ entrepreneurs. When the startup is ready to grow from that initial seed investment to the next stage I think CR is hoping that they will be part of then next round of growth.
Maybe I am naive to think that they are trying to look at the big picture. Since most startup`s can get thing up and running much cheaper these days it is vital for them to think "outside the box" . Here is a podcast interview George Zachary of Charles River Venture`s . http://www.podtech.net/entrepreneurship/venture-capital/1273 /charles-rivers-quick-start-new-seed-funding-program
just my .02