The Lisp Machine wasn't simply a piece of hardware which happened to run Lisp:

http://www.sts.tu-harburg.de/~r.f.moeller/symbolics-info/dev...

http://www.sts.tu-harburg.de/~r.f.moeller/symbolics-info/doc...

The Android OS is not written in Lisp. The turtles do not go all the way down. Therefore it is not and will never be a Lisp Machine in any reasonable sense.