In line with previous announcements, Sprint prepaid subsidiary Boost Mobile began offering the iPhone 5s and iPhone 5c today, marking the first time the brand has offered any model of iPhone for sale. While Boost's standard pricing available online already includes a $100 discount on every model compared to Apple's standard pricing for unsubsidized models, the carrier is offering an additional $100 off through November 24 to customers who are switching from another carrier and who make their purchases at one of the brand's retail stores.It is the perfect time to switch to B