Interactive Data Corp released its computer sales estimates for the third quarter and declared that Apple now has 9.4% of the U.S. market. This is up from last quarter and last year, even though the numbers include cheap netbooks and Apple has no netbook on the market. Apple still lags behind HP, Dell and Acer in quarterly sales.

A dangerous bug has been reported by some Snow Leopard users that wipes their home folders clean. It isn't clear why this has happened to a few users, but the connection seems to be logging out of your account, logging into the guest account, and then logging back into your main account. Apple acknowledged that this happens, but only in rare cases. Keeping a Time Machine backup is the best way to protect yourself from this, or from any number of mishaps.

Apple has released a performance update for Leopard and Snow Leopard that "prevents hard drive stalls" -- their notes don't go any further explaining the issue or why the update is a specific download and not a part of the Software Update system. You can find them here for Leopard and Snow Leopard: http://support.apple.com/kb/DL946, http://support.apple.com/kb/DL947.

In Snow Leopard you can sort the Expose windows with some keyboard shortcuts. Press F9 to start Expose, then Command-2 will sort by application, while Command-1 will arrange them by name. Press Tab repeatedly to view windows from each application in the Dock.

Gary Rosenzweig takes a look at the section on printing and sharing pictures from his new book the MacMost.com Guide to Switching to the Mac.

Learn how to start your own blog using a free blogging service. Get tips about which topic to choose, what to do to get off to a good start, and learn about common blogging mistakes.

Learn about the new book from MacMost.com. It is a complete guide to learning to use Mac OS X Snow Leopard. Written for both switchers and people who want to learn more about their Mac, the book teaches the fundamentals of using the operating system and the applications that come with every Mac.

You can find out more about the book at http://macmost.com/book.

The good folks from Otterbox send me their Otterbox Commuter Case for iPhone to protect my iPhone. Another great design from them. It protects all the edges very well, but doesn't hinder access to the screen or any of the controls. Comes with a screen protector too.

The follow-up to the popular GeoDefense game, GeoDefense Swarm doesn't disappoint if you are a fan of tower defense games. It looks like the original, but it is an open field game, as opposed to a fixed path game. In fact, it adds an interesting element as it is hex-based instead of grid-based.

I often get asked about iPhone cases. People want to know which one is the best one, or which one is right for them.