With the advancement in mobile wireless communication technology and the increasing number of mobile users, peer-to-peer (P2P) computing, in both academic research and industrial development, has found a new dimension of communication, collaboration and resource sharing. In the recent years P2P have evolved rapidly in Internet especially for file-sharing. The major issue of this popularity is that no longer the networks are constrained on unreliable central servers; sharing and connectivity is the main focus. The popularity of peer-to-peer file sharing applications such as Gnutella, KaZaA, or Napster has created an outbreak in recent Internet history. But P2P file sharing applications have not yet been widely adopted in mobile devices. In this paper, possibilities of P2P applications in mobile devices are presented. To illustrate the possibilities two demo applications are presented here. One is a message passing application and another is a file sharing application. The open source JXTA/JXME framework is used here.