I am on a grandfathered AT&T unlimited data plan (which I had on my Treo 680 from several years back). I read this article today regarding AT&T throttling some customers who use "too much" data (2.3 gb halfway through the billing cycle). I have no idea how much data I use. I tend to do most podcast downloads when connected to wifi at home or work, however occasionally I download a podcast with 4g. I haven't noticed any throttling and was wondering if anyone else with a Pre3 has. The article mentions top 5% of data users, but I know several people who have data plans that don't donwload anything, so the usage curb is probably pretty steep.
Here is the article: My Way News - AT&T customers surprised by 'unlimited data' limit