It's normal practice on mobile devices, even uses such scrolling in the menu.
no they do not they have the same navigation system that you have on the menu icon in the top right corner is what is used for mobile devices currently on pretty much all site that is mobile friendly. Thus far dolphin is the ONLY site i see that does not have that option. Even google,and yahoo have mobile friendly menus so I know it is possible. Its called sticky navigation and all site currently have it. except dolphin.
The menu on is for different purpose, it will not work correctly on Dolphin. I believe that the menu in Dolphin is the best solution yet available. If it isn't suitable for you you can try so get different one from the Market:
Below is the legacy version of the Boonex site, maintained for Dolphin.Pro 7.x support.
The new Dolphin solution is powered by UNA Community Management System.