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The grid would see the countless mobile devices becoming the most important users. However, the bottleneck is still at the last mile from the backbone to these mobile terminals where wireless environment places limitations on the rate and amount of communication. Currently, point-to-multipoint (PTM) communication is an effective solution to this limitation. This paper developed a new PTM mechanism to support efficient access to the multicasting information on the mobile grid. Furthermore, we studied the parallel channels content organization and concurrent content retrieval with or without indexing and caching. The presented algorithms with higher performance could deliver information to more users so as to achieve shorter response time and less network latency, both for the content organization side and for the content retrieval side. The performance was validated in many experiments.