After the end of the second day of the ongoing Google I/O in San Francisco, we have still not heard about any of the big announcements we were waiting for.

Much before the announcement of the actual schedule of the Google I/O, speculations were very high that the three-day conference will be the launching event of great smartphones, tablets and obviously the next version of the Android mobile operating system. However, there is only one day left before the conference wraps up and we don't see anything like that happening on the final day at the Moscone Center.

The Motorola X phone was replaced by the Nexus 5 in rumors and the speculated Android 5.0 Key Lime was also replaced by the Android 4.3 Jelly Bean. However, when it came to the Keynote of the Google I/O 2013, none of these were found in the three-hour-long speech.

According to a report from Android and Me, the Android 4.3 Jelly Bean does exist in the systems of Google's Android developers, but it won't come out until the 10^th day of next month.

The web publication attributed the information to its 'sources' saying that Google wanted to show its strength without launching the Android.

"Most of us expected Google to announce Android 4.3 at yesterday's big keynote, but it sounds like the next version of Android was intentionally bumped from the show. Sources at Google say they wanted to demonstrate their ability to roll out new services and APIs without upgrading the Android firmware, and it appears they made their point," the report said.

Nothing much is known about the features of the Android 4.3 Jelly Bean, but going by the earlier rumors, it seems that the next Android version will have support for Bluetooth Smart.

Google has already made it clear that the next version of the Android OS will have support for Bluetooth Smart, but it is not yet known whether the search giant was talking about the Android 5.0 Key Lime Pie or the Android 4.3 Jelly Bean.