This could, of course, work AGAINST Nokia if this device isn't S60-based.
Nokia already abandoned the S80-for-Communucators platform by going with S60 for it, if this thing is yet another OS then they've pretty much fractured themselves again. However, if the GUI is nothing more than a program running on top of S60 3rd Edition and is fully compatible with current and future S60 applications then they really have something here.