Wanna see it huh?
Starting from the homescreen. There's a change! The homescreen has been splitted in two. This mean whenever you launch your opera mini 7, you get to see a Home and a Speed Dial tab at the top. You can easily switch from one tab to the other with a touch/click.
Also, Opera Mini 7 (next) features a 'My Sites' section that displays links of your most/recently viewed sites.