Windows 8 Treats

Since upgrading to Windows 8, I keep finding more and more little treats. Remember all those essential programs you had to install after a fresh Windows XP or 7 installation? Not anymore! I’m so glad to see these new built-in features (with the apps I used to use in parentheses). Win8 screenshot

* A native PDF reader. (Adobe Reader / Foxit Reader)
* Long awaited native ability to mount ISO and VHD files (Virtual Clonedrive)
* Built-in antimalware/antivirus with an improved Windows Defender (Panda Cloud AV / Microsoft Security Essentials)

What nifty features have you discovered on Windows 8?