Pretty soon, all our online and real-world purchases could be paid through our carrier bills. Bill shock, anyone?

For years, carriers have been charging consumers with massive global data roaming fees.

Adam Savage, former co-host of Mythbusters, was given a $10,000 bill by AT&T for his trip to Canada. A Chicago Bears fan watched his team play while on a cruise ship on the AT&T network and it cost him nearly $28,000. A Portland family got a $20,000 bill from AT&T after he used an AirCard while traveling into Canada.

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With rumors of Sprint and T-Mobile finalizing a deal that would merge the two companies, rumors are now being revealed which hint at Mexican billionaire Carlos Slim being interested in purchasing T-Mobile. According to the Wall Street Journal, Slim recently received cash from his sale of shares of AmĂ©rica MĂłvil and currently owns an interest TracFone, a US prepaid wireless service that is the country’s fifth largest carrier. TracFone currently leases capacity in large cellular networks operators like AT&T and Sprint. Last week, America Movil announced that it was going to slash its market share in Mexico from 70% to 50%…

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BusinessWire As this site discussed earlier today, T-Mobile is expected to continue their reign as the “fastest-growing” carrier once Q2 results are released later this month. Now, the Wall Street Journal notes that although analysts expect all major carriers (except Sprint) to continue overall net additions of postpaid subscribers (which usually leads to higher earnings and better margins) in the Q2, there are also a number of questions marks about the near future of the major wireless carriers. Even with those additions, Verizon did not see their earnings rise after interest, taxes (well, if they pay any), depreciation and amortization. In fact, margins…