We need a new API method that looks something like so:

Satellite API specification:
Name: system.listActiveSystemDetails
Parameters:
 * string sessionKey
 * array:
    * int - system_id

Returns:
 * array:
   * struct:
      * int - id - the system id
      * string - name - the system's name
      * dateTime.iso8601 - last_checkin
      * array - network_devices
        * struct
          * string - ip_address
          * string - interface
          * string - netmask
          * string - mac_address
          * string - module
          * string - broadcast
          * array - ipv6
            * struct
              * string - address
              * string - netmask
              * string - scope
      * struct - dmi
        * string - vendor
        * string - system
        * string - product
        * string - asset
        * string - board
        * string - bios_release
        * string - bios_vendor
        * string - bios_version
      * int - ram - The amount of physical memory in MB
      * int - swap - the amount of swap space in MB
      * struct - cpu_info
        * string - cache
        * string - family
        * string - mhz
        * string - flags
        * string - model
        * string - vendor
        * string - arch
        * string - stepping
        * string - count
        * NOTE: sockets not currently available
      * array - subscribed_channels - subscribed channel list
        * struct
          * int - channel_id
          * string - channel_label
      * array - active-virt-guests - active, registered guests
        * int - system_id