Abacus Systems's Relational XQuery is an XQJ-compatible XQuery processor that allows you to execute XQuery against both relational data and native XML data sources. Relational data can be directly transformed to XML and aggregated and joined with XML data. Relational XQuery can be used in any application where relational data and XML must be integrated, such as Web Services applications, Service Oriented Architectures, and XML-based J2EE applications.
Watchee supports GPS location based live tracking from mobile phones which support J2ME and PDAs running Windows mobile. The track can be viewed on a Web portal. Key features are high data compression to minimize your phone provider costs, chatting, fine grained buddy permissions, sending in real time, and location bound photos.