Has anyone used a SIM card from True move for phone service in America , or have any recommendations for traveling in America for a couple months? Thanks

I just realised that while I was actually getting unlimited data for 600B on my AIS package last year, what I bought at the airport for 850B is in fact not unlimited, but rather limited GB after which you are cruising along at 400kb/s

Are there any really unlimited packages left in Thailand on prepaid? Dtac? True? Or is the 25Gb 6Mb/s package as good as it gets these days?

EDIT:

For those interested in coverage, here is a great tool. [[members only])

Seems like DTAC, True Move and AIS cover most of the country, but AIS has significantly better coverage of "4G+"