Samsung had earlier said that wi-fi only Galaxy Tabs would be released "later," but did not say when "later" was. Launching it at the same approximate time as the 3G versions is somewhat of a surprise.
The Best Buy screenshot shows that the store will sell both wi-fi only and wi-fi+3G models. Pricing will start at $499, which is obviously the wi-fi only model. That price is identical to the lowest priced wi-fi only iPad.
Best Buy seems to be selling both Verizon and Sprint versions, with 3G service available from both carriers with a contract or a month-to-month plan. Verizon hasn't announced pricing for a subsidized version of the Galaxy Tab yet. Strangely, also, Sprint announced pricing with a contract, subsidized, is $399, so why does Best Buy's pricing "start" at $499?
It's still unclear if this launch at Best Buy will begin on the same date or, rather, dates as the carrier launches.