Hello there and welcome to your full guide and preview of Google’s new  Android operating system version 3.0, also called Honyecomb, also known  as Android’s first tablet-centric OS. The first of two main points we’ll  be going through here are is New User Features. The second of two  points is covered in a second post – New Developer Features. We’re going  to break it down for you in both technical terms and layman terms so  everyone can have a crack at understanding what’s going on here. Shall  we begin?
NEW USER FEATURESFirst we’ll be going through User Features – what’s this mean? It  means that this is the part anyone who DOESNT plan on getting into  developing apps, games, or hacks will be seeing and using. Everyone  should pay attention though, as this is the face of the future of  tablets in Android, and everyone knows that the face is half of the  body.
New User InterfaceThe folks at Android are saying they’ve designed this new UI from the  ground up. They’ve optimized this system to work on devices larger than  your average smartphone, the same way you design a giant poster  different than you design a business card. More space, different design.  In doing this, Android has introduced a new “holographic” UI design  (which we’ll get into later) as well as a content-focused interaction  model. This means that while smartphone versions of Android did have  content on them, apps, games, this tablet is living in that world  wholeheartedly. Android versions of the past, on smaller devices,  devices that still have their hearts in communicating with other such  devices, this Android is made to be utilized as a fuller work and play  machine. A comparison can be made to a letter and a book, if you catch  my meaning.
Android 3.0 claims to be refining such things as multitasking, home  screen customization, widgets, and notifications. All of these items in  Honeycomb have been looked at, poured over, and modified – integrated  and expanded into this new 3D experience, one that will seem at first to  be brand new, but will quickly feel familiar, even when you’ve got your  fingers on features that are completely new. Apps written for earlier  platforms should translate perfectly well to this new environment, and  new apps will have the opportunity to make use of a new set of UI  objects, new media capabilities, and more powerful graphics.
Action Bar — Application Control — TOPAt the top of your screen in every application, the Action Bar will give  you access to contextual options, navigation, widgets, and more. This  bar is of course controlled by the open app rather than the system, just  adding another component for developers to take control of an use to  add functionality to their apps. For example – Android supposes this  feature will be used where apps otherwise used overflow dropdown menus  written individually for each app – now there’s no longer a need for  that.
 System Bar — Global Status and Notifications — BOTTOM
At the bottom of your screen always*, apparently even while you’ve got  apps open, the System Bar will be open, sending you notifications,  system status, and some soft navigation buttons (back, home, menu.) *The  one time this bar will be invisible is “Lights Out Mode” which is  essentially a “full screen” situation for when apps and movies wish to  take up the entire real-estate.
Customizable Home ScreensIf you’ve never customized the way your home screens look, you’re in for  a treat. Where apps such as 
ADW Launcher EX are used for home screen  replacement now, on Honeycomb that sort of functionality will be built  in. Honeycomb allows you to have five customizable home screens (that  means each screen can be whatever you want it to be, where home screen  replacements now only do universal changes.) Each of these five screens  can have widgets and apps as normal, but also a dedicated visual layout  mode, wallpapers, and more.  
 Lots of shadows and subtle visual cues help improve visibility while  layouts of both app shortcuts and widgets are being arranged. Each  individual screen also offers access to your launcher (with all of your  apps) as well as a search box for universal searching of apps, media  files, web, contacts, and more.
 
Recent Apps
A feature everyone in the world uses 100 times a day, recent  applications, is available here now to help you rock and roll with speed  to the apps you use most. This feature is in place to help you  multitask by rapidly finding the app you need by showing you a snapshot  of the actual state the app was in the last time you used it. How  helpful! This feature can be found in the System Bar.