Karma chameleon: the hotspot to combat the connectivity conundrum

Device lets travellers to the US avoid expensive data roaming charges - and helps locals avoid restrictive data limitsKarma wifi was first mentioned to me as I was heading to a conference in Texas early last year. A friend lent me their own hotspot, their early adopter enthusiasm pitching it as a secret weapon against the tyranny of expensive and irritating data costs when travelling abroad. And we all know that odd sensation of internet angst - the feeling that your laptop has become an island