Jxta for J2me Proxyless

i am new to JXTA, i have read JXTA Protocol Specification,
i want to make a simple p2p chat using proxyless version and right now
i dont find any tutorial about this new version of Jxta for J2ME(JXME)

i have few questions?

1. what is the difference between proxy and proxyless version of JXME?

2.how should i make a peer in proxyless JMXE?

3.what is relay concept in JXTA, is this the what Proxy is meant for
in earlier version.

4. if you have any code for starting JXTA with J2ME (proxyless version)