[erichmond]

I'm guessing they borrowed it from this : http://lambda-architecture.net/

[turingbook]

The Forbes article said it is named after Star Wars space craft: http://www.forbes.com/sites/benkepes/2014/11/13/more-amazoni...

But I think it is simply named after the functional language feature. The core concept of this service is function.

[apetresc]

I'm not sure what Nathan Marz's "Lambda Architecture" has anything to do with AWS Lambda, though

[bruceboughton]

I don't think so. That is another naming abomination.