We've known since February that Nokia was working on a QWERTY-sportin' followup to the 770 Internet tablet, and now the Wall Street Journal has confirmed that the included VoIP app will indeed be, as we anticipated, Google Talk. Unfortunately this means that the device will still be unable to call regular phone numbers out of the box, although G Talk members will at least be able to chat among themselves for free. The WSJ is also reporting (only to its subscribers, not to us) that sources close to Nokia have said that the new device will be officially unveiled on Tuesday, and sell for around $390 when it hits stores.