I know the laser part of the sensor is still the Philips sensor, but I don't know if they've managed to overcome its failings with the optical sensor. That said, they could fix the mouse in a heartbeat by getting rid of the laser
![Tongue :P](https://cdn.geekhack.org/Smileys/solosmileys/tongue.gif)
Now I've got both mice in front of me, I'd say that the G700's wheel is a touch lighter in terms of middle click weight, and has side scrolling to boot. In terms of scrolling, the Deathadder is notchier than the G700, most likely due to the fact that it's much lighter. The Logitech build quality seems much better than either of the Razers I've used. No glossy sides to get ****ty and sweaty either, though the Deathadder Black Edition addresses this. I don't deny that the Deathadder has a WAY better sensor (ignoring lift off distance), but you don't use a sensor, you use a mouse, and the rest of the Logitech package is nicer to the point where the Deathadder is in the drawer 90 percent of the time.
PS: Pardon my medication and sleep deprivation inspired ramblings
![Tongue :P](https://cdn.geekhack.org/Smileys/solosmileys/tongue.gif)
EDIT: Found this at OCN:
Just tested it at E3. It has the S3888 and Philips twin eye. The optical sensor is used only for LOD (Turning on and off the sensor when lifted) and the Z-axis issue is still present.
Seems like Razer are still chasing the MOAR DEE PEE EYEZ!1!!11 crowd. :\