Windows Phone 7.8 for the Nokia Lumia 510, 800 leak on NaviFirm. ( Photos )

A new Nokia software update for the Nokia Lumia 800, and Lumia 510 was spotted on NaviFirm earlier today.

The software update being none other than the much-anticipated Windows Phone 7.8 upgrade for the Windows Phone 7.5 Lumias. But what does this mean? Well, the appearance of firmware over on NaviFirms servers usually means that Nokia is pretty close to deploying it publicly. And, if you know your way around a Windows Phone, you can even download the WP7.8 firmware and try it out yourself.

If you do that, let us know how it goes along, eh? In the meanwhile here’s hoping Nokia’s planning on releasing that update before the holidays!