On the One X, if the phone opens up an application that requires a legacy menu button, the phone pulls up a software nav bar that has a single menu software button:
This configuration is possible on the i9000 through the following mods:
1) Remapping the Menu capacitative button to a Multitasking button:
2) An autohiding nav bar with nothing but a menu button. I don't think an auto hiding nav bar has been implemented in a ROM as of yet, but AOKP roms allow for the manual hiding of the navbar. Problem is that when the navbar is hidden the os doesn't show those wonderful in app menu buttons in ics apps.
I tried the first mod out but can't for the life of me figure out how to mod source code (The limitations of a noob *sigh*). The result is a successful remapping of the menu key to a multitasking key but instead of opening up the ICS multitasking display I open up an old school gingerbread task switcher. Yuck. Unfortunately I don't have the android prowess to attempt the second mod. So this is a request for someone to implement this mod in an apk or a rom. Thanks for your time.