The Samsung Galaxy Tab ($400 with a two-year contract on Sprint as of November 22, 2010) is the first Android tablet that has what it takes to challenge Apple's dominant iPad. Available from five domestic
wireless carriers--AT&T, Sprint, T-Mobile, U.S. Cellular, and Verizon--the Galaxy Tab's hardware is similar across providers. The big differences lie in service pricing, whether the carrier takes advantage of the Tab's mobile-hotspot capability, and whether the device has a SIM-card slot (CDMA-based Sprint and Verizon units lack this feature). Overall, you can expect the Tab models to be similar in use, with minor differences in which apps are installed from the get-go.
