Comment Re: Mobile e-mail requires a mobile data plan (Score 1) 237
Re: $300, it really depends on your overall blend of cell usage. I've used Ting's pay as you go service for a couple years and do the same thing the op does, turn on $3/100MB mobile data for email on my S3 when I'm traveling. They're a Sprint MVNO, so coverage is predictable by looking at the Sprint maps.
Bottom line is that if all three parts of your voice/text/data usage are low, then $25/mo is not only doable, it's actually a little high.