I'm in Grenada now, Carriacou actually, I got a local sim with 10EC credit, the international calling plan 120 minutes to the US, Canada & UK and a 1 week data plan 600MB for 56EC/ $21 US total, the data plan can be re-upped for 17EC/ $6+ US.
How does that compare with using the international plans from the US servers? If it works out cheaper I might try it myself next time.

Drink all day at home, your friends worry about you; do it on vacation and they say "what a good time you're having". Save your friends needless worry, travel more!