I'm just starting to commute from Beacon to NYC and I'm hoping to work on the train so I can leave the office a bit earlier. I'm not sure what the best option for wifi is on Metro North. Is there a specific provider that's better when traveling the Hudson Line? What's the best kind of mobile hotspot--affordable-I don't need a ton of gigabytes per month. Does it make sense to invest in some totally different technology that I'm not aware of?