I think this is pretty much identical to the subject being discussed here:
http://news.ycombinator.com/item?id=1426211
There's a lot of discussion there already, and it might be worth reading it before commenting here and repeating all the arguments.
ADDED IN EDIT: Having gone and taken my own advice (for a change 8-) I prefer the other article because the diagrams are larger and in-line.
There's some useful comments from last time this popped on to the HN front page: http://news.ycombinator.com/item?id=1426211
I think this is pretty much identical to the subject being discussed here:
http://news.ycombinator.com/item?id=1426211
There's a lot of discussion there already, and it might be worth reading it before commenting here and repeating all the arguments.
ADDED IN EDIT: Having gone and taken my own advice (for a change 8-) I prefer the other article because the diagrams are larger and in-line.