Hi Patrick,
Thanks for your question! We just recently updated our MrSid and ECW support to version 8.0 and 4.2 respectively.
Please see the following link for the official announcement: gis.thinkgeo.com/Support/Dis...fault.aspx
Thus for ECW we have support at the ECW sdk level for ECWP as this is included with the 4.2 version but I am not aware of any changes to our API that would enable specific support for ECWP.
I will check with our development team members to see if perhaps this support was added and not mentioned. :)
To my knowledge we only updated to 'ERDAS ECW/JP2 SDK Desktop Read-Only' free sdk so we only have read support.
To quote ERDAS "The 'ERDAS ECW/JP2 SDK Desktop Read-Write' or 'ERDAS ECW/JP2 SDK Server Read-Write' sdks would be necessary for compressing images into the ECW and JPEG2000 formats."
(Source: erdas.com/company/news/n...e_Now.aspx)