When ESRI released ArcGIS 10, they added support for reading ECW files from the free ERDAS ECW/JP2 SDK, v3.3. Now ESRI is working on support for the ECW Protocol for streaming ECW and JP2 data from an ERDAS APOLLO IWS server into ArcGIS products. This link provides information from ESRI’s support site concerning the matter. It is great to see ESRI support ECWP!
ERDAS continues development of our latest version of the ECW Plugin for ArcGIS. We expect to deliver the product to the market soon. I will give more detailed information on the ArcGIS Plugin around the time of the Hexagon 2011 Conference. ERDAS' goal is to add support for these capabilities to this version of the plugin:- ArcGIS 9.3.1, 9.3.1 SP2, and 10.0
- New dynamic progressive rendering of ECWP layers
- ECWP local caching (persistent and configurable)
- Opacity channels
- Faster progressive display
- Support for foreign language versions of Windows (GUI not localized)
- Re-projection of the ECWP streams on-the-fly
ERDAS is working with Autodesk on a new ECW Plugin for AutoCAD 2010/2011 as well. I will provide more information on that topic after Autodesk and ERDAS work through some bumps in the road.
For more in ECW support in ArcGIS 10, see: http://field-guide.blogspot.com/2011/05/esri-adding-for-ecwp-in-arcgis.html