Download Grid Touch for FREE from Nokia Ovi Store.
i have tried this on my Nokia N8 & it works really good.
Find, organize and launch all your apps blazingly fast! Organizes all app icons on the phone on a grid of 9 zoomable pages. Move from page to page by swiping up/down/left/right. Zoom out from upper left corner. Search apps using find symbol in upper left corner in zoom out mode. Move an icon by holding it for 2 seconds. Rename a page by holding the title for 2 seconds. Exit or update the Grid via offscr logo in the lower right corner.