America Online in the UK (AOL UK) is using our cURL application (without including the license anywhere) as part of their automated broadband router configuration CD for their AOL UK customer base. The CD is provided to all AOL UK customers and the automated router configuration component using cURL has been included with it for a couple of years.
The software includes the cURL application renamed to "AOL_Broadband_Installer.EXE". There is no license included or mention of the license anywhere on the CD or installer, contrary to what's required at http://curl.haxx.se/docs/copyright.html.
The md5sum for AOL_Broadband_Installer.EXE matches the win32 binary in the curl-7.15.3-win32-nossl.zip release package I personally built and offer for download...!
Update: see my reply below.