While there are no active plans to support Go, it is useful to know of customer interest in the language. Thank you for your input.
Note that Go does provide support for calling into Windows DLLs:
http://code.google.com/p/go-wiki/wiki/WindowsDLLsAlso, PDFTron is about to open-source PDFNet SDK wrappers for Python, Ruby, and PHP, and these could be used as the starting point for Go wrappers (if you desire).