You mean the method of creating them? Or the original question here? Well if you want to know about the way to create them, then look here: http://www.topsony.com/forum/showthread.php?t=81
And about the scrolling, you probably mean like fluently moving when scrolling, yes? Well, you probably cannot achieve fluent scrolling with my method. Cause the whole thing about it is that the picture of the selected icon isnt as small as it should be, but covers all the display. You draw there on the same picture all the "unselected" icons and the one "selected". If you use an animated gif, you can even have the "backgroud" behind the "selected" icon moving. So you create 12 big pictures that cover the whole screen and you don't have to change the layout.xml. So you can have the menu to look ABSOLUTELY ANY WAY YOU WANT, you can have the icons themselves nicely animated, jumping around the screen :D but no real smooth scrolling, sorry. :(
//EDIT
BUT, now i have an IDEA. It would take probably really much time, but it would work. After creating these biiig icon pictures, you would have to animate them, to mimic the scrolling. Hmmm... let me think...
...
OK, imagine: you have a picture. Go to Photoshop, make a blank, lets say black picture of the same size as your icon picture. copy the whole icon picture and paste it into the black one, but so, that u move it up nearly "out of the black picture" so you will see the black and only a little stripe of the icon on the upper side of the black one. Save it as lets say 1.jpg. then move the icon pict a little bit down, so you see a bit more of it and save as 2. Then move it again more down, and save and so on, till the icon picture "slides" completely down to cover the whole black picture. Everytime u move the icon over the black, move it for the same amount of pixels, so the final "movement in the animated pict would be fluent. So you will probably have now like 10 - 12 "frames of an animated gif. Put it in a giff animator as frames, set the timing between the frames to really low times, so the slide will be quick and leave it to run only one time. NOT LOOPING. Because, if you would stay on the menu longer, it would keep sliding down for ever and would look idiotic. I chose the movement up - down, cause from left to right, or reverse, would look good only if you would scroll the oposite way and not the same. Example: icons slide from left to right. You scroll from right to left, so the icons "comes" from the left. OK. But you scroll right, and the icon should come from right and comes again from left. BAD. So up down or down up is at least a bit better.
So. What do you think guys? Takes its time, but would actually work. I'll try to make one and give you notice. I'll put this part in the tutor aswell...