The 1's and 0's that make up computer data are limited by physics. Data speed will always be limited because they have different aerodynamic properties. So while the 0 can move fine at slower speeds, the 1's move faster because it has a slim profile and slides through the chips better because it is flat. What the guy in HK was explaining, is that they pushed the speed too fast and the 0's are moving slower than the 1's, sending false signals to the computer chips on the miniaturized motherboard. CDMA carriers with evdo can make them move faster through a process called encapsulation, where each packet of data (a grouping of 1's and 0's) is put inside of a capsule, and shot across the micro wires at very fast speeds. With encapsulation, there is no way for 1's to go faster because they are all inside of a bubble.
I know this may all sound technical for some people, I have just gotten to grips myself as to how all of this actually works. Its mind boggling.