- Install and run Exploit apk to get root:
- Install XposedInstaller-ICS_JB-rc2.apk, follow instructions on post.
- Install XposedMultiWindow.apk.
- Open the Xposed Installer app (installed in step 2). Click 'Modules', then check 'xMulti Window Mod', and reboot. (activates the run-time patch allowing all apps to be multiwindow compatible).
BTW, there are more cool Xposed modules (like call recording, per-app dpi, and no 100% battery notification) you can download here. Xposedframework eliminates the need for stock rom chefs imho.