The Lotus Notes Application Analyzer a nice tool, when you are considering a migration from Lotus to SharePoint

Application Analyzer for LOTUS by MS: "The Lotus Notes Application Analyzer helps in determining the size and scope of Lotus Notes application migration projects. The tool consists: the Data Collector and the Data Processor creating reports with application complexity and scale indicators, and migration recommendations." Quite a nice tool, when you are considering a migration from Lotus to SharePoint.