Someone recently asked what the difference between e2Sync, GoBetween and the new built in sync within Entourage. Let me help here if I may. GoBetween does not work. e2Sync does. The built in sync does too, sort of. e2Sync is by far the best IMHO. It provides syncing according to categories within Entourage OR iCal. It works well with Palm. It's very fast. And they seem to have a permanent 30% discount, so the price is only $2 more than GoBetween. The built in sync does not support categories at all, and just syncs everything in Entourage to a single category in iCal. Pretty mush useless.