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Well, I saw that patent, and again, it is not clear that this one is not without "prior art" either. Redirection per se is a browser function that has existed since the start of time. Almost all wireless units have a "filter by MAC address" feature.
Also, most of the coffee places don't offer wireless by themselves, but rather as part of a network. They are only commissioned sales agents, not owners in fact. They are using software provided as part of the sales package. Acacia will have to go after the actual network owners, and companies like Linksys and Cisco that build this stuff right into the wireless units. I think this is a non-issue.
Again, they are attempting to take a VERY broad patent and apply it long after the fact. The courts will look dimly on the their continued attempts to stretch things (this will be their third, the Vchip one got shot down as well... )
Alex
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