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Launchers are different, you can make your own personal launcher that looks similar to touchwiz and you can run it on stock or aosp ROMs like any other third party launcher out there. That's why you are able to use the Google Launcher, Next Launcher etc on AOSP 4.2, 4.3 as well as 4.4 ROMs
But when it comes to actual apps like S-Note, S-Memo, Samsung Keyboard, they are have dependencies on the Samsung Firmware and therefore are a big pain to even try to port to a non-stock ROM
You may recall that a few weeks ago, we talked about a rather interesting take on … more
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