Likewise. I just tried to use an old version I had and it wanted Snowy / Lion and wouldn't work on ML. Then I went searching for a newer version and discovered that app was back in development.
I have an SSD arriving today for my 2009 13" MBP and had rather hoped to put clone my bootcamp partition on it.
How soon post ML's release do you expect for Winclone to be released as ML compatible?
I backed up BootCamp on SnowLeopard before I re-installed ML. But my WinClone software version 3.4 will not work on ML. It won't even install, so I cannot update it. And I cannot download anything newer that Winclone 3.4
Aha!!!! Perhaps persistence and desparation pays. After 4 attempts I managed to startup my downloaded copy of WinClone 3.4. Before it said it would not work in ML (I downloaded in SL).