I manage a QA GLES server and we have Good in production as well but we test with what's released not BETA, so I'll have to use my Q for work mail as I use POutlook for my personal E2K7 mail.
Here's a whole thread about Good on AKU3.5 and now WM6 for those who want more background:
http://www.ppcgeeks.com/bounty-for-c...ing-t4834.html