Wow - I have seen a lot of strange, sad comments in here. The one that takes the cake: "Consider you save your laptop from melting down, even alienware laptops will eventually die from gaming." Wow. Obviously someone that never owned an Alienware. I have seen dead Alienwares, certainly. The last one had someone drop a couch on the screen. Seriously. None dead from gaming.
So, lets look at a few things folks.
1: All of you commenting on the 4x electrical connection misread the statement in the article. "The input card looked like it was a PCI-Express 8x card, and upon asking we were told that it was actually operating over just four lanes" The INPUT card. You know, the one with the USB ports on it. THAT is the card running on 4x lanes. Now then, looking at:
http://ark.intel.com/products/78930/Intel-Core-i7-4710HQ-Processor-6M-Cache-up-to-3_50-GHz , it appears the CPU only supports 16 lanes total. So something has to happen here. Most likely (this is a guess) there is an electronic switching device internally to send 16 lanes to the GPU and 4 lanes to the IO. Consider for a moment, that there are up to 8 PCI-E 2.0 lanes offered up by the PCH. It is very possible that 4 lanes are being used for the IO device, and the last 4 used by the system internally. Audio and 1 Gig-E port are supplied by the PCH, so the remainder could easily be used for the M.2 ports... There is a lot of complaining done about bandwidth, when the chip itself is certainly capable of it, and NOTHING so far has indicated that bandwidth is actually an issue.
Now, lets look at the REAL issues that came with this. First and foremost, Alienware did away with CPU and GPU upgrades across their entire mobile lineup. They also limited the amount of RAM available (from 4 slots on the 17 to 2 slots - thus a 16GB limit), limited the VRAM on the GTX980m (from 8GB to 4), did away with metal chassis (to a carbon fiber/plastic mix), and killed the 18 entirely - so no more SLI.