Xavor SharePoint 2010 Migrator (XSPM) is built on-top of SharePoint2010 migration API using latest Microsoft technologies with extensible architecture to provide ease of use and 100% definite results to satisfy our customers' needs. Xavor SharePoint2010 Migrator is a one stop solution to migrate data from WSS 3.0 to MOSS 2007, WSS 3.0 (Platform A) to WSS 3.0 (Platform B) or MOSS 2007 (Platform A) to MOSS 2007 (Platform B) or MOSS 2007 (Platform A) to MOSS 2010 (Platform B).The standard version is absolutely free to download and it’s not a trail version.
http://www.xavor.com/whatwedo/solutions/sharepoint2010migrationtool.aspx
