International data services give us the freedom to leave our carriers' roaming plans at home, but that's only so much consolation to travelers who have to lug a giant laptop or cater to a digitally savvy family. Xcom Global is gambling that some of us want more portable (or just additional) gear for our travels: it's offering daily rentals of the WiFi Nexus 7 and Nexus 10 as a complement to its usual hotspot deals. Paying $2 or $3 pe
