Microsoft has just sent out "save the date" invites to their IFA press event in Berlin, Germany on September 4 and the invite could be a teaser that the company could reveal its Windows Phone 8.1 Lumia 730 "selfie" smartphone at the event.

As you can see, the invite has the text, "ready for more?" with the "o" in "more" shaped to look like a smartphone camera lens. The invite also states "Join us for more face time". Both of these statements would seem to tease something along the lines of the Lumia 730, which, as we have already have reported, will have a 5 megapixel front facing camera for better "selfie" images.

Additionally, a Lumia 830 may also be announced, as both phones are slated for a similar time-frame for release.

Stay tuned as we will likely have more information on the specifics of Microsoft's IFA press event, where the company will almost certainly reveal one or more upcoming Windows Phone 8.1 devices. In the meantime, what do you think this teaser "save the date" invite means?