Suggest format for basic system facts

system-facts.json

{
  "id": "0123456789abcdef",
  "name": "myname",
  "provider": "puppet",
  "role": "some_identifier_from_cm_system_can_be_nil?",
  "timestamp": 1290616560,
  "provisioned": "true",
  "os": {
    "name": "linux",
    "version": "2.6.35-22-generic",
    "vendor": "ubuntu",
    "vendor_version": "10.10"
  },
  "hardware": {
    "type": "virtual",
    "provider": "vmware",
    "arch": "x86_64",
    "ram": 8192,
    "swap": 768,
    "cpu": {
      "count": 4,
      "cores": 2,
      "speed": "2.4",
      "vendor": "Intel",
      "vendor_model": "T770",
      "vendor_description": "Intel(R) Core(TM) i5"
    },
    "disk":{ 
      "/dev/sda1": 500,
      "/dev/sda2": 500,
      "/dev/sda3": 128
      },
    "network":{
      "/dev/eth0": { 
          "address": "192.168.1.1",
          "netmask": "255.255.255.0",
          "hwaddress": "01:01:01:01:01:01",
          "speed": 1000,
          "duplex":"full",
          "mtu": 9000,
          "gateway": "192.168.1.254"
          },
      "/dev/eth1":{
          "address":"192.168.10.10",
          "netmask":"255.255.255.0",
          "hwaddress":"02:02:02:02:02:02",
          "speed": 10,
          "duplex":"half",
          "mtu": 1500,
          "gateway": "192.168.10.1"
          },
      "/dev/eth1_1":{
          "address": "10.0.0.1",
          "netmask": "255.0.0.0",
          "hwaddress": "01:01:01:01:01:02",
          "speed": 1000,
          "duplex":"full",
          "mtu": 9000,
          "gateway": "10.0.0.254"
          }
    }
  }
}