Kayak, the popular multi-airline airfare search engine, thinks Microsoft Bing’s new travel search engine looks so much like its own that it’s confusing Kayak users. The travel search company sent Microsoft a legal letter last week telling them to cut it out.

“We have contacted them through official channels about concerns about the similarities between Bing and Kayak,” Kayak’s chief marketing officer Robert Birge told Wired.com “From the look and feel of their travel product, they seem to agree with our approach to the market.”

That’s careful language for “Microsoft copied our stuff wholesale.”

Microsoft’s Whitney Burk denies that there’s any copying going on.

“We are discussing the matter with Kayak,” Burk said in emailed statement. “Bing Travel is based on independent development by Microsoft and Farecast.com, which Microsoft acquired in 2008. Any contrary allegations are without merit.”

Source : Wired.

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