http://arstechnica.com/gadgets/news/2011/02/verizon-quietly-begins-throttling-data-as-iphone-launch-looms.ars http://arstechnica.com/gadgets/news/2011/02/verizo

http://arstechnica.com/gadgets/news/2011/02/verizon-quietly-begins-throttling-data-as-iphone-launch-looms.ars http://arstechnica.com/gadgets/news/2011/02/verizon-quietly-... http://www.engadget.com/2011/07/13/sprints-virgin-mobile-brand-to-test-throttling-while-sprint-pok/ http://www.engadget.com/2011/07/13/sprints-virgin-mobile-bra... Verizon already started throttling for its top 5% of users and, as the article notes, T-Mobile similarly has started throttling. Sprint hasn't announced plans to throttle on their brand, but has announced that they're going to start testing throttling on their Virgin Mobile brand. It's unfortunate, but not really unexpected given that two of AT&T's three main competitors already throttle (Verizon and T-Mobile) and the third competitor (Sprint) is testing the waters this fall with one of its wholly-owned subsidiaries (Virgin).