Documents have been found that show that starting November 1, Sprint is moving toward a tiered data plan for Mobile Hotspot and Mobile Broadband. The plan looks to have three different options; a 3GB, 5GB, and 10GB of allowed data, going over you tiered data will incur you serious charges. Does this change by Sprint, the Now Network, spell doom for unlimited data plans for their mobile phones? At the moment that answer is no, but similar plans were outlined by other major carriers and with the addition of the iPhone how long can Sprint’s network hold on. Tell us what you think in the comments below.