The list below are flaws I have found with Mountain Lion and would be interested in responses to these flaws. 1) NO DVD to install Operating system. Im sure most of you are aware that your can recover your operating system by booting using the option key. But this installation is on the operating system disk and it can be corrupted. If this type of corruption occurs you cannot reinstall your operating system without some how replacing the disk or installing a operating system via CD or USB. I am not sure how Apple handles these issues 2) Mountain Lion does not display installed updates in a single identifiable view. This existed in Snow Leopard. As with Windows and Ubuntu operating systems you should always be able to clearly identify updates on your running operating system so you can determine if any needed updates are missing. 3) Firewall off by default. Many new users probably are not aware they Mac has a Firewall and have never turned the Firewall on. I cannot conceive of a reason the firewall should be off by default. 4) The built in PPTP VPN by default does not tunnel data through the PPTP VPN. This definitely makes no sense. If you create a VPN PPTP tunnel you want your information running through the tunnel by default. What makes this flaw particularly bad is that if you create a PPTP VPN and do not check "send all traffic over the vpn connection" It will appear you VPN tunnel is working when you are running through the unencrypted network.