Here is a list of my favorite features that you will find in Snow Leopard:

• Faster Wake up, shut down, and joining a wireless network.
• Automatic Automatic Automatic! Snow Leopard automatically detects your current time zone and will update printer drivers so you don’t have to.
• Safari is super fast in Snow Leopard. It’s also super resistant to crashes (Damn browser plugins, ahem, Flash).
• Built in Microsoft Exchange support right out of the box. Great for students and organizations utilizing Microsoft Exchange (almost everyone). Email, Contacts and Calendar with Exchange will work the way they are supposed to without any extra setup.
• Exposé and Stacks get new functionality. Exposé will now utilize the dock for a better user experience (just click and hold on an application icon and all windows will unshuffle so you can quickly change to unshuffle another one). Stacks are now scrollable and gains navigation.
• Grand Central Dispatch! For us developers this is simply awesome. It makes it super easy to take advantage of multicore processors. Consumers will also notice a kick-ass difference in application performance by applications utilizing this technology.
• OpenCL, yet another geeky technology. When an application needs extra processing power it can turn to the graphic processor to share the load. Another piece of technology to make your mac scream in terms of performance.
• 64-bit native applications including Finder. Speed!
• Reclaim your storage! Not only will installing Snow Leopard be 45% faster than it’s predecessor, but it’ll give you about 6 GB of storage back!

Traditionally Apple charges $129 for new versions of OS X, however this version is so important that they want everyone to upgrade and it’ll only cost them $29.

Mac OS X (Leopard) only: Virtual desktop enhancement utility SpaceSuit assigns separate wallpaper images for each Spaces virtual desktop so you can distinguish between desktops at a glance.

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Keychain is OS X’s database of passwords and keys used when retrieving email, connecting to Mobile Me (Formally .Mac), or anything that contains auto sign-on. We take the Keychain for granted and usually don’t even know of it’s existence. However, there’s one error that people keep asking me about: Error -2147415734. Keychain Error’s can be a huge pain, however this entry will explain how to fix the problem in a few simple steps.

1. Locate the Keychain Utility in your Applications directory under Utilities.
2. Launch Keychain Utility.
3. Look for the fields whose Kind is “.Mac Password.” (Unless you have changed the default Keychain configuration, it/they will be located under the “login” keychain).
4. Select and remove the fields by pressing the delete key on your keyboard.
5. Confirm the deletion.
6. Close Keychain Utility.

You will have to re-enter these passwords next time they need to be used (checking email, syncing to Mobile Me, etc.) and they will be “re-stored” in the Keychain.

Note: You may need to click the lock icon (in the upper left on OS X 10.5 “Leopard”) in order to make changes to your Keychain by authenticating yourself.

Huzzah! Problem solved!