I was in Guam when in the Navy, but that was long ago and it wasn't really developed much with still a lot of WWII wreckage/remnants everywhere.
A friend was there about a year ago and he said it has developed into quite a destination with lots to do, including good surfing and a number of mountain biking trails.
I just emailed him and he used a SpeedyPin phone card to make calls while he was there. I'd bet Google would identify others.

Been through Guam a couple of times but never stopped. It's quite American, like a hotter/more humid version of Hawaii - very different to a lot of the surrounding islands (except maybe Kwajalein).

Hope you like snakes.

Thanks Busydog for phone card advice.
Yes snakes - heard that one. Not too keen.

I love that the Yanks want us to hold talks with the Argies whilst still holding on to Guam.

Are you in the textiles industry?

If you have a wifi connection and a smartphone/laptop, you can just use Skype (or similar).

thanks Konabunny - no i am not in textiles.