This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
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.