Microsoft Corp doesn’t want to say too much about UPOS, the unified point-of-sale specification for defining retail systems that will support Redmond’s OLE POS and JavaPOS until it’s ‘officially’ announced at the Riscon trade show in Denver (incidentally the same week as it holds its developers’ conference in the same town). Although a willing party to UPOS, which was demanded by retailers, Microsoft says it still doesn’t really understand why UPOS is required when OPOS supports Java. Moreover JavaPOS, it says, is designed for use with JavaOS, and where’s that?