Popup Browser for the Samsung Galaxy Tab 2 allows users to browse the interwebs via a re-sizable browser that floats over the desktop. The floating app produces a very similar result as the multi-window feature found on the Galaxy Note II. XDA user pidio1 created the app for the Galaxy Tab 2 running stock ROM. Another user tried installing the app on a custom ROM but did not fare so well.
I tried flashing the app on the original Galaxy Note but was unable to get it to run. Another XDA user reported the app ran perfectly on a Galaxy S III. Here’s the Download Link if you want to give it a go or hit the source below. Although it doesn’t specifically say you need to be rooted for the app to work, those flashing through ClockworkMod recovery are experiencing the best results. If you change your mind about it, just delete PopupBrowser.apk from /system/app. Good luck!