Drag and Drop Tags?

Tom.. wouldn't be nice to have tags in a drag and drop fashion? so i have "my tags" defined and they should be visible on any of my lists, all i've to do is darg the tag to the item. This will save time of retyping and keeps tags consitant what do u think ? is it possible?

Don't think I will add drag and drop but I will add tag auto completion (type t and all the tags beginning with t come up) at some point as they have on some other sites.