The latest Android operating system, KitKat 4.4 will be announced along with the new Nexus 5 smartphone on 14 October, it has been rumoured.
At the moment Google has only given October as the time KitKat will be released, following the unveiling of the OS at the beginning of September.
Now, tipsters have told ausdroid.net that the big launch will come in mid October, although the site does say it is taking the rumour with a pinch of salt.
The company has not yet even mentioned the existence of a Nexus 5 device yet, but new Google regulatory filings released by the Federal Communications Commission last week, appear to show a fully assembled new Google smartphone.
The images also match the look of a mysterious smartphone that an employee was captured holding in an Android KitKat announcement video, which was quickly taken down by Google when the firm noticed the blunder.
Ausdroid.net's sources have said that the phone in the video was indeed the Nexus 5. This would also match up with previous launches, with the Nexus 4 being released in early November last year.
The Nexus 4 also recently had its price slashed in the Google Play store, suggesting the imminent release of an upgraded device.
Naming the new Android OS KitKat, after another company's brand (Nestle) was a surprise move by Google, with the update previously being known at 'Key Lime Pie'.
It's not clear how the tie in works, with Google saying that there was no financial agreements as part of the deal. Unsurprisingly, Nestle said it was delighted with Google's choice of name.
Some have sighted a possible Halloween promotion as the reason, with the huge popularity of trick-or-treating for chocolate and sweets in the US. This is something that would potentially fit in with the 14 October release date, which comes two weeks before the festivities.