Android 4.4 KitKat has now been released and the tech world already started speculating about the next Google mobile operating system update.

Rumors circulate that Android 5.0 might be released in mid-2014. The OS might also be announced at Google IO, a 2-day developer conference in San Francisco every year.

Craig Tuttle created a video of the possible features that Android 5.0 can change or update. He is obviously a Google Now fan based on the video as he used a complete integration of the software, notification bar and Google Hangouts in the design.

One of the best things people would like to change is the new multi-tasking screen. It is best accessed through a side swipe and offers a quick list of recently opened applications. The general professionalism and sleekness of the concept can be impressive, whether or not it is real.

Source: YouTube.com/Craig Tuttle

Samsung still has to confirm its Android 5.0 schedule but it claims to have decided which tablets and mobile phones will be getting the upgrade. The devices that are most likely to receive the upgrade are Galaxy Note 2, Galaxy Note 8.0, Galaxy Note 10.1, Galaxy S3 and Galaxy S4.

Many people assume that there might be an iOS Games Center service coming to Android 5.0. References in the code to functionalities such as real-time and turn-based multiplayer, achievements, in-game chat, leaderboards invitations and game lobbies were found.

People are also excited that Android 5.0 might offer a brighter interface instead of the Holo Dark theme that came with Android 4.0. Google Now has cleaner fonts and a new clearer look and Google's app market might take on the same design cues.

It is quite inconvenient to manage your phone before you sleep and Android 5.0 has an opportunity to make it simple and automatic.

Samsung's Jelly Bean update had this functionality but it needs to expand a bit more. There can be a max power delivery, an overnight low-power state or a reading mode for a steady backlight. Some possible new features might include a better multiple device support to manage film downloads from one device to another, an enhanced social network support through cool aggregator apps, a line-drawing keyboard option for clever alternate text entry, a video chat app (much like Facetime because Google still doesn't have one!), multi-select in the contacts for mass messaging, a cross-device SMS sync and more.