This paper presents an evaluation of partial and intermittent (PI) resource support on JXTA and proposes a new MANET rendezvous service, optimized for handling PI resources. JXTA is a peer-to-peer modular open platform optimized for developing Internet applications, which already provides basic support for MANETs. JXTA rendezvous service on adhoc mode already supports synchronous searches. However it can not handle PI resources and it may produce a broadcast storm on dense MANETs. This paper also describes a prototype implementation of the proposed MANET rendezvous service, and presents some performance measurements.