AT&T, Inc. (NYSE: T) started unleashing its netbook wireless data plans and subsidized netbook PCs in select markets just this year. The nation's second-largest wireless carrier will now be rolling out the program nationwide this summer. That means customers will be able to purchase an ultraportable netbook PC with an AT&T wireless data plan anywhere AT&T's markets are. Call this unimportant, but it's a biggie for AT&T.The one shining light of the PC industry for the last three quarters have been netbook sales. These sub-$500 book-sized PCs are perfect for travel and normal tasks like web surfing, email use and word processing and spreadsheets. Tap some kind of built-in broadband access inside these low-cost computers outside the standard but limited range of WiFi and you pretty much have a go-anywhere, compute-anything device way smaller than most textbooks.
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