We are currently using the Sprint wireless broadband card Merlin S720 and have coverage just in the U.S.  We are interested in getting a broadband card for international travel -- current destinations include Vietnam, France and the U.K.
Is anyone doing this?  What vendor and card are you using?  What are the costs?  How reliable is the connection?
Thanks for any info!
 ~ Esther
Esther V. V. Reed
IT Systems Administrator
MSU Graduate School