Hey,
It has taken a while but we now got jbosstools-arquillian up and running at
http://github.com/jbosstools/jbosstools-arquillian
It is still a bit rough on its edges but now that Snjezana made it integrate
with standard launch configurations it seems appropriate to enroll it in
JBoss Tools upcoming Beta1 release.
Edges found while integrating it is recorded at
https://issues.jboss.org/browse/JBIDE-14424
Thanks Snjezana and all the Arquillians that have given input!
Have fun,
/max