The website says it's 12 per day now for US. I have a plan through work and mine is 9 per day but it was 7 before. Bottom line is, yes it has increased.
I'm currently in the States and received my bill. Also, even though my plan has unlimited texting, since I'm in the US I can receive a text no charge but if I respond or send a text, Roaming gets activated since it needs to hit the US carrier towers. I didn't know that--i thought it was just for data.