Some Apple stores temporarily closed, reasons unknown

At least three of the company's retail locations--in San Francisco, Seattle, and Walnut Creek, Calif.--have been shuttered for a few days. Apple isn't saying why, other than for "minor updates" to the stores. Could it be to prep for Apple's iPhone event on Tuesday?<img src="http://feeds.feedburner.com/~r/cnet/tcoc/~4/aVHtoyMCK98" height="1" width="1"/> [More]