RDFIO is a project to bring RDF data import functionality to Semantic MediaWiki (SMW) to enable using SMW as a collaborative platform for editing semantic data. This functionality enables important usage scenarios such as bootstrapping a wiki structure from RDF data, full round-trip between the RDF data format used on the Semantic Web and the SMW wiki text format and creating mash-ups combining automatically imported datasets and manually created summations and visualiations using the inline query language and visualization functionality available in SMW.