So I stopped by the T-Mobile store to get the full run down on the new $70/month plan. It turns out it is the exact same plan as the $60/month, they just raised the price $10. It's now $70 for 2 phones with unlimited data ON THE PHONES. If you want to use the hotspot, that is $10/month extra per phone and it's 3G at best. For an additional $25/month on one phone you get true unlimited 4G speed and no data limits. You can add the $25 plan to both or $10 on one and $25 on the other. One or both would then be used as a hotspot to power your computers and other devices.
Even at $70 plus $50 for unlimited unlimited the cost is lower than Verizon's Beyond Unlimited plan which is still highly limited.