[Galaxy S II General] nikzDHD:
I still think users are getting confused in thinking that TW is just a launcher.

Wikipedia:

TouchWiz is a touch interface developed by Samsung Electronics with partners, featuring a full touch user interface. It is sometimes incorrectly identified as an operating system. TouchWiz is used internally by Samsung for sophisticated feature phones, and is not available for licensing by external parties.

The latest version of TouchWiz, 4.0, has been released on the Galaxy S II. It boasts a more refined user interface as compared to the previous version, 3.0, on the Galaxy S. Some of the features added[1] include panning and tilt, which makes use of the accelerometer and gyroscope in the phone to detect motion.

TouchWiz is used by Samsung's own proprietary operating system, bada, as well as phones based on the Android operating system.

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Here is a nice copy & paste of what TW actually is:

Home Screen

Up to 7 Home screens, with the ability to add and remove screens at will, and drag them around to change the order (pinch zoom the home screen)

Customizable dock area at the bottom of the home screen, allowing you to add/remove up to 4 apps.

Home Button

Holding the Home button brings up a list of 6 recently used apps, along with a Task Manager button

Holding the Back button and tapping the Home button takes a screenshot on the Galaxy S, for the Galaxy SII use Power+Home

Samsung Widgets

These are home screen widgets that Samsung include, and are in a separate Samsung Widgets category pre-Gingerbread, post-Gingerbread they are in the main Android Widgets list with the word "Samsung" under them instead of "Android". Exact widget selection varies depending on OS version and network.

AccuWeather Clock

Buddies Now (messaging shortcuts for nominated contacts)

Calendar Clock

Daily Briefing (News, weather, stocks, social media updates)

Days (create new entries in the Diary app)

Dual Clock

Feeds and Updates

Program Monitor

Y! Finance Clock

Samsung (and other) Bundled Apps

Samsung AllShare (DLNA)

FM Radio (for models with hardware FM radio)

Kies air (shares phone data, and allows control of some phone functions over wifi to a PC web browser, first pre-installed with Gingerbread, available in Samsung app store for older OSs)

Memo (notepad app)

Mini Diary (create diary pages with daily details, memos and photos)

My Files (file manager)

Samsung Apps (Samsung's own app store, currently only free content in there, but some of the apps are normally paid or ad-supported on the Android Market)

Social Hub (messaging app combining email, SMS and social networks)

Task Manager

Polaris Office

Modified Apps

Contacts (History and Activities tabs, linked to Social Hub and social network account updates, showing recent posts by contact and recent interactions with them)

Gallery (interface to select either scrolling wallpaper or static, portrait wallpaper)

Music (Disc View interface added, allowing sideways scroll through albums showing the artwork on a "CD" shape)

Videos (extra codec support DivX/Xvid in particular)

Region specific TouchWiz features

Throughout most of Europe and Asia, Samsung's Mobile Tracker feature is included in the Security settings allowing remote password setting, tracking and wiping of mobiles registered on the http://samsungdive.com website

Version specific TouchWiz features

Eclair (Android 2.1) - TouchWiz included Wifi tethering as a standard feature before it was brought to the main Android OS in v2.2.

(except where noted, all from TouchWiz 3 on a Gingerbread Galaxy S)

There are some things missing from that list for example the Camera app, Calendar, etc. But you get the general idea of what TW is and what it includes.

Source: http://android.stackexchange.com/qu...uchwiz-has-that-vanilla-android-does-not-have