Well just to update, in addition to the sip stack that was ported back in March based on mjsip there is now a port of jain sip talked about here:
http://jeanderuelle.blogspot.com/200...f-android.html
There is some talk about getting a RPT stack ported so that voice can be captured and streamed here:
http://groups.google.com/group/mobic...8fbdd874083d49
Let's give em some support and encouragement.