LG is expected to announce a new smartphone with Wi-Fi connectivity under the KT-series. Remember, the KT-series comprises Symbian S60 based devices, which would ideally mean that the KT770 should be a Symbian S60 3rd edition device. We expect this one to be announced at the MWC in Barcelona next month.
Update: We have stumbled upon some more information about the KT770. The device will indeed run on Symbian S60 3rd edition FP2 platform and will have a QVGA display. It will also have a physical QWERTY keyboard, though we aren't sure at the moment whether it will have the 'Communicator-isque' form-factor like the KT610 or not.