I'm watching as we speak:
Another reason Mac has many less viruses is the market share, if you're a virus coder you'd most probably want to make a virus that would be able to infect 90% of people instead of whatever market share Macs have. It's not just that Windows is easier to hack (it is) because there are some incredibly smart people out there who do viruses, you can bet they'd somehow manage.. I'd still advise getting an antivirus on Macs, Sophos is free ^n^
Good video though, keep it up