The client is independent of the technology used on the server. It may not be possible to use a JAX-WS toolkit to create JME client code for your WS, but there should be no difficulty in creating a client some other way - check if your device supports JSR 172. As a last resort, you can always create XML programmatically and send that over an HTTP connection.
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com