According the MS press release,

According the MS press release, Office 10 has two features that seem like they would have been perfect with DeepLeap:

  • Native XML support. Excel and Access now support XML as a file format and can easily import and export XML data. This enables organizations to build solutions that integrate Excel or Access as the front end to XML-based data structures to improve corporate reporting and analysis.
  • Extensible Smart Tag architecture. Smart Tags are built on an extensible architecture so that developers can create new Smart Tags to help Office users gather information from the Web, such as accessing real-time sales or inventory data while working in Excel.