I think the Boston Viridis falls into the "commercial blade server" category and as suggested in the conclusion is how it should be done if you were not using existing dev boards.
Is that an invite to show me round Cambridge MakeSpace? ;-) I was thinking about the open evening on tuesday but it is very inconvenient.
Ah, sorry - I thought you'd been buying devboards to populate the unit.
Yes, I'm sure a visit to MakeSpace could be arranged. My username at gmail.
If they sold a version with only 10 SoCs perhaps.
As the platform is in Cambridge, I should remind everyone of the Cambridge MakeSpace which has just officially opened, and would be a great place to help build that kind of chassis.