Something like that just happened to me.
My Palm (M515) worked fine with Palm Desktop 4.0 and OS 10.2. Entourage X sync worked flawles, too.
Then, suddenly, hotsnyc stopped to work. Re-installing all Palm software didn't get it back to work. Weird enough, syncingto a PC still works, so I guess it can't be the Palm's problem, right ?
Anyone ?
Thx,
-t