"One of my favorites about this feature is that you can drag and drop a character link from chat, which can be pretty handy when you ask people to "x up"."
Check out the other improvements in this dev blog

EVE Online Dev Blog: Fleet Interface and Other Improvements in Retribution 1.1
community.eveonline.com
I hope you like this feature and that it will make your lifes easier when you are organizing your groups to go kill others (or hug, or whatever it is you like to do in your fleet ops).