I'm perplexed that even with IOS8 there is no way to set the billing cycle so that the phone auto resets the data usage counter automatically. All other android and windows mobile phones can do this and it seems like such a simple option but yet Apple still has not implemented this? Honestly with the level of integration Apple has with their handsets and carrier functionality, i think it should even be able to autodetect the billing cycle from the carrier. Oh well maybe in a future release. Till then do you guys just use the carrier app/websites to track data usage?