Take into account that generating ARM binary is not all the story.
For example, Android applications run in a virtual machine
targetted by (a dialect of) Java. These Java applications can be
bound to native code via JNI interface, that also does not target
D, and even a plain C application would have to be ported, as
they use some kind of Android-specific version of C standard
library.
To summarize, possibly you could port a D application to Android
with reasonable investment of sweat and blood, but ... you know,
everyone can fall out of a window, but this cannot be considered
the most convenient way to get to the street.
Possibly the upcoming Ubuntu phone will be able to provide a
friendlier platform ...
