The book "Peopleware" has documented this very concept decades ago (according to wikipedia, first edition was published in 1987), yet here we are in 2012 with still more "cool open" environments for programming teams.
Lots of startups want to recreate the cafe experience as a workspace, but I'd rather work in a real cafe, with more people and more noise than an open space office. In a cafe, you still have somewhat of an expectation of privacy, there's less the prospect of someone interrupting you just because you're within reach.
A huge difference at a cafe (or library, or beach villa patio ...) is that the people around you don't have any say in your activity. Other than, perhaps, the cafe manager who could kick you out for hogging the table.
But, generally, the people there are strangers (or casual aquaintences), not workplace bosses, subordinates, rivals, or even true collaborators. So what they do has a lot less influence on you than would be the case at an office (or a home environment for those who work at home with roommates or family).
Not only does this reduce interruptions (other than someone with low social awareness or boundaries, you're not likely to get interrupted), but the conversations and activities at other tables don't concern you. While you might casually observe or evesdrop as a diversion, you've got no stake in the outcome of a given conversation or interaction.
Similarly, you can flirt with the boy or girl at the next table without worrying about it turning into an HR issue.
This is much less the case in an office. Particularly one with any sort of disfunctional relationships.
Online collaborative projects (including Free Software projects) typically operate similarly. People participate because they're interested and are capable. You can't be fire (OTOH: you're often not being paid), but in a sense this is a good thing as it disintermediates work and work product from concerns over how that product is received.
Here's a link to the top positive review in amazon, giving an insight as to its content http://www.amazon.com/review/R1R3N8JI29OPPE/ref=cm_cr_pr_vie...
Lots of startups want to recreate the cafe experience as a workspace, but I'd rather work in a real cafe, with more people and more noise than an open space office. In a cafe, you still have somewhat of an expectation of privacy, there's less the prospect of someone interrupting you just because you're within reach.