why no legendary yellow ?

Acer bought the entire Texas Instruments mobile and personal computer department. The name might sound alien to youngsters but Texas Instruments was very big deal back in the 80-90s (my first laptop was a TI, it cost me RM16,000 with docking station). Same thing with Lenovo when they bought IBM computers business. Acer to date still uses Travelmate name and Lenovo still uses Thinkpad and Thinkcenter. So microsoft most likely will still use Lumia name for their phone lineup but they cant use Nokia brand.

Now becoz L930 is using OLED and doesn't have the PureMotion HD+ technology as L920 have, you will notice that the font's and the color of the fonts including the refresh rate on the L930 struggles to keep up with your quick swipe up and down the screen. This can be easily notice when you are in the "Settings" section or the listing of Apps.