Can computers keep getting faster

Yes, very much so. All tasks such as web Surfing and email will speed up along with the times it takes to open programs. It will also allow more programs to run simultaneously without slowing down.

Games continue to advance and require better, faster computers to play them.

Programs such as Folding@home (a medical research program that people run on their computers, combining the power of many computers to do demanding calculations) will speed up and bring us closer to results for deadly diseases.

Military computers need to many complex calculation in a short amount of time to intercept missiles and such.