Forget the OLPC: Here's a 30-children-per-desktop solution

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| Most recently, the country of Macedonia announced plans to serve all 420,000
| of its K-12 students using a combination of PCs running Ubuntu Linux and
| NComputing's PC-sharing devices, which turn each computer into a mini-server
| that can be shared with up to 30 students in a single classroom.
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http://www.computerworld.com/action/...ntsrc=hm_topic

And other super-clusters...

High-availability middleware supports "super-clusters"

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| Element comprises various "middleware" components that sit between a Linux
| operating system and the carrier's applications, which are called "service"
| applications.
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http://www.linuxdevices.com/news/NS3721362494.html