The hotly anticipated new project from Google, Google Glass, is set to be launched next year.
It had previously been thought that the Google Glass devices, which aim to put smartphone-like functionality in the user's line of sight via a lightweight pair of spectacle frames, might make it onto the market before the end of 2013.
However, an interview with Google's Executive Chairman, Eric Schmidt, suggests that it will now be 2014 before consumers will be able to get their hands on a pair.
Speaking to BBC Radio 4 this week, Schmidt said: "How soon is it likely to come onto the market? There will be thousands of [Google Glass devices] in use by developers over the next months, and then based on their feedback, we'll make some product changes, and it's probably a year-ish away."
Meanwhile, internet speculation continues to rage as to what sort of capabilities Google Glass will have. The latest rumour involves the hardware being calibrated in order to recognise eye movement; this could provide functionalities such as being able to capture a photo with a wink.
Bearing these possible features in mind, Schmidt told Radio 4 that the introduction of Google Glass would mean that consumers would have to "develop some new social etiquette".
He said: "It's obviously not appropriate to wear these glasses in situations where recording is not correct. You have a responsibility to understand what you're doing, how you're doing it, and behave appropriately and also keep everything up to date."