Been using my iPhone 5 on Straight Talk since Oct. I stream YouTube, Pandora, Livemixtapes, and Netflix daily without a problem. Used over 4GB/month of data the past 2 months and there is no throttling whatsoever. There really is no catch at all. Service is great (identical to AT&T). This is the best mobile plan there is without a doubt.
AT&T throttles at 5GB for iphone 5...so you are good...
throttlling for straight talk is based on carrier....I just reupped with AT&T because I have a huge discountand I lost my phone....If I would have seen this, I would have thought twice...I have unlimited data and text for 60 from a grandfathered plan....$45 is getting close to making me look to switch...too bad I just got a two year to buy the iphone5 on the cheap...probably will even itself out..