I may be showing my Java bias but upgrading to Cordova 4 and leaning against
the aar sounds the most "correct".
Right I'm leaning more to this one as well.
However if doing a source include is not a maintenance nightmare (IE
someone
has to manually update the sources all the time) AND it gets us in
phonegap's official packaging system then +1 to that.
Especially for push it still might be hard as they have there
'official' push plugin.
I thought that a requirement of metrics was that it is the developer
who
picks when to send them not the library?
It could be automatic it doesn't need to be, default would be that it
doesn't send metrics information and by adding sendMetricInfo to true
you would enable it.