http://en.wikipedia.org/wiki/Nexus
There are 4 magazines, 2 video games and at least 5 different pieces of software (the very first version of WWW, written by Tim Berners-Lee, was called Nexus). There are also 5 bands and another 5 albums called Nexus.
Firstly, Google's phone is the Nexus One while the androids' model in "Bladerunner"/"Do Androids Dream..." was Nexus Six - presumably the last in a series beginning with something like Nexus One.
Secondly, how come the "Droid" has to mention George Lucas's claim to the term but the "Nexus One" does not need to refer to PKD?
Taking off my devil's advocate hat, I think that the name "Nexus One" was clearly inspired by Bladerunner (engineers/nerds working on a platform called "Android" was always going to lead to lots of robotic cultural references) but that does not mean the estate of PKD should be able to make a buck from it. The use of "Nexus One" in this way should be a sign that "Bladerunner" has become an important cultural touchstone, at least in tech circles.
One doubts that it will ever become a lawsuit, since there's little sense in throwing away legal fees. There isn't even a first approximation to a case here.
And a place Malcolm McDowell really wants to get to.