As Don mentioned, in the upcoming release of Mosaic the service objects
have access to the framework's context so it can send and receive
messages.If must use Mosaic 9.5 then you can still pass the context
object into the service from a tile, but the timing becomes tricky. I
wrote a blog article with one solution (not saying its the only, or the
best) that you may want to look
at:http://blogs.adobe.com/steampowered/2010/11/service-interruptus.html