When???....
Like at least for another few years.
CPU and memory wise, laptops are catching up fast. Dothan from Intel actually handles game pretty well:
http://www.gamepc.com/labs/view_content ... ing&page=1
The current limitations are on LCDs and also the graphic card. 6800Go and ATI M28 are somewhat power hungry and also increases the weight/size of laptop due to increase of size on battery/heatsink/fan/etc.
Take a look at desktop LCDs. Even without size and power limitation, they're still struggling over response time, or color accuracy, or shading, or mixture of them.
Some recent LCDs have impressive response time (advertised 8ms, lab shows closer to 20ms but which still beats most of other claimed-25ms LCDs).
For those who plays simulations, especially flying ones, response time won't be very important. 20 FPS is OK, and it won't stress on LCD speed too much.
For the FPS fans like Halo, Unreal, Half Life (and its various mods), Quake, Doom, etc etc, ... LCD screens sometimes just don't cut it. Some dark corners can be completely "blind spot" on LCDs while still visible on CRTs.
Give the designers/engineers some time and money, and they will figure something out in next 20 to 30 years.