Our second episode of Tech tAUk covers this week’s latest headlines including ICANN’s opening of internationalized domain names, the continuing controversy over Google Street View, and scientists receiving a grant to recreate Harry Potter’s cloak of invisibility. Douglas covers this fall’s new operating system releases: Mac OS X Snow Leopard and Windows 7. And Josh demonstrates how to download YouTube videos and convert them for your iPod using Perian and MPEG Streamclip. (Firefox users may also prefer using the 1-Click YouTube Video Download extension.) And this week’s viral video features a stickman destroying Windows XP.