Android 4.3 Jelly Bean release is already expected to arrive very soon as several top Android mobile devices were already seen running the Google's upcoming operating system.

International Business Times reported that Google has already released the source code for Android 4.3 Jelly Bean. The latest OS is already detected on various flagship devices, especially the Google Play Edition of smartphone models.

For instance, the very first mobile device to get Android 4.3 Jelly Bean release is the Samsung Galaxy S4 Google Play variant. Also, the Snapdragon-powered variant of the Galaxy S4 is already being tested with Android 4.3 Jelly Bean. Reports were claiming that Samsung will integrate its 'Touchwiz' feature before releasing the Android 4.3 Jelly Bean update.

More recently, HTC One Google Play Edition was spotted to run the Google OS. Bluetooth SIG provided a documentation revealing the device with model number HTC PN071xx_Android 4.3_G. Christian Post explained, citing Android Authority, that PN071 means it is HTC One and 'G' is for Google Play edition. Android 4.3 mentioned at the end of the model number is an obvious indication that the new software from Google is already running on the handset device.

Furthermore, XDA Developer named Taylor_Swift just ported the latest Google OS to Sony Xperia Z. He has also made the ROM available to download, which makes it possible for users of the HTC flagship device to try the Android 4.3 Jelly Bean themselves.

Other mobile devices which were discovered to undergo Android 4.3 Jelly Bean testing were Galaxy Nexus, Nexus 4, Nexus 7 and Nexus 10. All these Android devices will receive the official update soon.

There were also rumors claiming that Samsung Galaxy Note 3 may run Android 4.3, instead of Android 4.2.2, since the source code for the forthcoming operating system is already released by Google. Moreover, GottabeMobile reported that ASUS Memo Pad Smart also run Android 4.3 Jelly Bean.

According to rumors, the Android 4.3 Jelly Bean release date for the public will be this July or August, before the launching of Android 5.0, dubbed as Key Lime Pie, in October of this year.