On a slightly off-topic comment, I really wish big companies would stop cooping technical terms for their product names. I clicked thru happily expecting an article about lambda as in anonymous functions or lambda calculus in general. I know, language evolves and yada yada, but when one actor purposefully forces a new ambiguous use of a word, that is not normal language evolution, that is language vandalism. If you want to use an existing word for your product name, at least pick something from other field, so there is no ambiguity in a specific context (e.g. in a computer forum the word "mouse" unambiguously means the input device, and the word "apache" certainly means the web server or parent org).