This is a very good idea. For those of us that are running custom firmwares on our phones we have a program called Categories. It allows you to create "folders" that you can customize to hold different categories of apps ie a Games icon when touched opens up a page that holds all of your game icons, web folder that holds all of your web clips, a utilities folder that holds all of your utility apps...etc etc. So even if you have 160 apps you don't have themfilling up pages.
This idea would be very cool and tremendously sought after if it can be achieved.