I am planning to use google groups for supporting Marathon.
Please join marathon-testing group @ http://groups.google.com/group/marathon-testing
I started it with a posting about the details of the new release ;-).
I will maintain this forum for sometime and will be redirecting people to the google groups. After that I will delete this forum.
Thanks and Regards
PS: I need help in moderating the marathon-testing group. If you are interested please drop me a mail. There will not be much except rejecting first-mail-spams. Since first-mail is held for moderation, if I am not able to access internet the mail is kept pending indefinitely.