[UK-AL]

It's nothing to do with the support guys. It's do with the support by the vender.

When you deploy an os over something as large as the NHS, your going to hit a few snags, perhaps at the code level. You will need somebody who you can phone up, who will then go bug fix those issues.

Vendors like redhat have support licences that support this. And those licences are still fairly expensive.

If NHS was going to deploy a Linux Distribution, they will have to bring a Linux distribution vender onboard which would take the role Microsoft does now.