They're a little unclear about the other plans, though. How does data work on that 750 minute plan? It says "auto-refill," but what the does that mean?
If you buy a Net10 SIM, you are limited to the unlimited voice, text, and data plan for $50 or $65 with international features. Any other Net10 plans you may see on their site are for dumbphones sold at retail in a blister pack.
The only link you should be looking at for Net10 is
Net10SIM.com. That is the BYOD (bring your own device) website.
People that prefer being on AT&T's network may want to wait for
AIO Wireless to roll-out nationwide. Although it looks like an MVNO, AIO Wireless is owned directly by AT&T and is being test-marketed now. For $55/month you get unlimited talk and text, and 2GB of 4G data (apparently including LTE). After the 2GB, you're throttled.
On Net10's AT&T SIM for $50/month you get 1.5GB of data and then are cut-off. I would rather spend the extra $5 a month on AIO Wireless for more data, then throttle.
If you're fine with being on T-Mobile's coverage, then you have more options for unlimited data for cheap and Net10 might be a good option.