This is the single biggest change that will decide if me and friends play this game long term as we all have somewhat erratic work/family lives. Therefore at the moment if a friend is on for 3 hours and I join after 2. I can only play 1 hour before being kicked off as host leaves, or he has to wait 2 hours for me if I am host.
Without a change there is no point in our group devoting any serious time to this game, which at the moment the 4 of us quite enjoy, although not often as a full group given other commitments.
I would imagine there are a number of other people in this situation as well so please send a comment to bring to forefront of devs attention.
Thanks.