Since FlamingPeach mentioned that the journals could be saved (I don't use 'em myself but I know a lot of people really like them, so I think it would be extremely important to keep them around) it sounds like the switchover could be nearly transparant to the userbase. So I'll change my vote and say, if that's the case, go for it! New toys are always fun as long as they don't make your friends stop playing with you
