THIS APP REQUIRES JB 4.1.2 & ROOT ACCESS
ONLY SAMSUNG ROMS SUPPORT MULTI WINDOW...CYANOGENMOD, AOSP, AOKP, ETC CANNOT USE THIS APP
Samsung has added a new multi window feature to a few of their Jelly Bean devices. However...there is only a limited set of apps compatible with this new feature.
Using this Multi Window Manager, you can enable ANY app to take advantage of this awesome new feature.