Everyone,
Sorry I don't know the name of my plan. I started the plan at the phone store next to Alex's Pasta Bar. Lady named Ana runs it. You can get various data packages. I got a cheap plan for $229/month for 1 gig data and unlimited phone and texting. The plan is good for calls and data in MX, USA, and Canada. Supposedly Facebook and Twitter are free in all 3 countries and don't count against your data, but I found this not the case in the US. Originally, I believe I had to sign up for an 18 month contract. Now I'm on a month to month. I pay monthly using a US credit card and the mi Telcel app.
Mainecoons, when in CO I didn't download or stream movies but I was constantly on my phone checking emails, Facebook, Utube, uploading photos, looking at maps, getting local info. I tore through data like I was home on wifi. I went thru 16 gigs of data in 19 days, then my billing month ended, and I had to give up the remaining 4 gigs. So I bought 4 more gigs for the remaining 5 days of my trip.