I have to say that the most important change for me is longer pages. This has been a problem for me in the past, I had to split my pages in two and considering I have a free option 15 pages were running out quick. I was still able to find a way around that issue , but this lates extension on page lengths will make it a lot easier. I haven't tried this yet, but it seems like we will be able to change moonfruit address as well. This will come handy if someone changes their mind about name of their site after they already finished creating it.
On the other hand , I was not impressed with new design for moonfruit web site. The old one looked cleaner and easier to navigate. New one looks busy and less professional, knowing how great moonfruit tools are I was little disappointed to see what they came up with. Background graphics and colors just don't do it for me.
It could be that I am one of those people who don't like changes, but that was my first impression when I logged in moonfruit this morning.