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Karma Hotspot$79.00 with 1GB Free (+$14 for every additional GB of data)Karma

They say "sharing is caring". And in the case of Karma, a new 4G mobile hotspot, the act of sharing an open wi-fi network for strangers to use can reward you with an additional 100MB of free data every time someone connects to your signal. It's a social networking service which runs off of Clear's WiMax network, with solid performance out in the wild. The no-contract and affordable hardware price makes this a solid travel online connection tool that may also lead to you making some new friends through the act of sharing that most precious of resources: a reliable online connection!