Things will stabilize again in about 18 months... 64bit dual core probably with a decent onboard GPU or a standard Video card format for standalone GPUs.
However, as everyone above has said, this will only be relative stability... things will keep changing and improving (not always the same thing).
Again, as everyone above has said... if you need a laptop now, get one now. Try to avoid getting the latest and best because it will only last an extra 6 months and will cost double the price of the midrange choice.
I recently bought a Dell 9300 and am overjoyed with it despite the recent release of the '9400' (Dell calls it the E1705, but it is just a 9300 with a dual core chip and improved video card). For my purposes, I simply do not need the extra power and my 9300 cost $1,501 after discounts and before taxes or shipping. The '9400' costs at least $800 more for a similarly equipped system and, since there are few discounts available on it, more likely over $1,000 extra.
My 9300 should last me for 3 years and I can then replace it with the equivilent mid-range system then, which will save me money and give me satisfactory performance.
Of course, there are some people who need to have the latest and greatest machine (I just saw a review of a $5,000 desktop with an overclocked dual core 64 bit AMD chip, dual 7800's running on SLI and a terrabyte of Raid 0 Hard Disk... 3DMark of over 10,000 compared to my 3,500... but not exactly suitable for carrying around with me ! And, not needed for anything I am likely to be using it for.)