With the Google/Samsung Hong Kong event just a few hours away, one major Japanese wireless carrier has let the news regarding the upcoming Nexus Prime (Galaxy Nexus) slip a little early.

According to a tweet from the carrier, the Nexus Prime will be launched at the event and released to the public sometime in November. The event in question will also see the unveiling of the new Android OS, Ice Cream Sandwich. It is set to kick off October 19th in Hong Kong – and will stream live tonight, October 18th at 10 pm EST on the Android YouTube channel.

Here’s the tweet from the Japanese carrier, DoCoMo –

With the help of Google translate, we see that it says:

Notice: the latest Android OS smartphone with Google and Samsung Electronics announced on October 19 in Hong Kong tomorrow. DoCoMo is almost equivalent to the fastest in the world, scheduled for release in November. More later.

So it looks like we will see a Nexus Prime debut with Ice Cream Sandwich in just a matter of hours.

The “scheduled for release in November” part echoes information we saw on Monday that said the release date could be as early as November 10th. A leaked pricing list showed a sales window starting on that date.

As a bonus, Italian site Android.hdblog has come across what they say is a flyer to the event. It shows the Nexus Prime from two angles, and it appears to looks like the same phone we’ve seen in supposed leak videos and other promo photos.

They also confirm some device specs, most of which we have heard before – 4.65 AMOLED HD screen with curved glass, NFC, 1GB RAM, 1.2 GHz dual-core processor. The device is also said to be 5.4 in. x 2.7 in. x .35 in. (.45 in. at thickest part), which would make the Nexus Prime extremely thin.