Just received a reply from OR:
"The new code is still going through its paces. There were some issues found in the previous week that had to be corrected, and then you have to go through another full week of testing on what you have done. Software is annoying. Plus, this server rebuild is scary... since this is the server, and if we screw it up in a new or different way (once the new sever is online) then we have gone nowhere. We just replaced one problem with a new one. And any new bugs could be worse than what you are experiencing. Who knows, we could be adding a hidden bug to the timing system and mess up Find A Match games. We are terrified about the switch, kind of like changing hearts on a mammal, but know that we have to get the current issues fixed.
And you are not the only one who we have heard from who wants this Challenge Friends issue fixed now. I have to say, having been a gamer all my life as well, and having suffered with buggy games that I liked, I really appreciate that you have cared enough to send these emails to use rather than just walking away forever. From our current development schedule, and assuming we find no more issues with our new sever code (which is really key), we now hope to launch that at the end of this month. We have put all the sever folks we have on this task for a couple months now, actually. I hope you will test it out for us then and let us know if we have gotten it right."