2. OTA Update: Yes
3. Manual update: no need
4. Firmware version: .26
5. Were you able to unlock: not wanted to yet
6. Root: not bothered yet
I did do a little sniffing on the network though.
When I ask it to check for updates it does a SSL connection to mdm.asus.com (even multiple ones it seems) and the site uses a certificate that appears to be validated by something stored on the devices. If you go to https://mdm.asus.com
it will say there is a problem with the certificate, but if you continue anyway you get a testsite and it sais "It works !". If not, you won't be able to OTA either as the tablet can't phone home...
So, to you that can't access any OTA or unlock, try opening the url and see.