All laptop sales will decline, in the last 10 years laptops have gone from getting closer to a desktop machine in capability and back to the bare minimum to run the OS. And after people realised Netbooks were just a fad and you can't do any real work on them so are not actual replacements for a 12" laptop the sales naturally will tail off.
Go into any shop today and see if you can find a new laptop for sale that can run the 2002 game Battlefield 1942....didn't think so 
All you get today are Facebook/youtube capable dual core multi gigabyte bollox really, and this sours it for people who believe laptops are ONLY capable of this level of performance.
Which is funny because due to such lame programming by most games coders towards the end of the Amiga's life joe public assumed Amiga 1200s were barely superior to mid 80 Nintendo NES consoles technically and light years behind your average £1000 386SX PC from Amstrad. It would seam everything gets dumbed down to the lowest common denominator they can get away with these days *sigh*
That's my point! The role which those crappy "multi-gigabyte bollox" are designed to fill are being taken over by tablets and smartphones. At the same time, PC gaming is on a rapid decline and console sales are still going strong.
We are heading for a more specialized computing culture, where small cheap devices like tablets and crappy notebooks and netbooks constitutes the bulk of private computing needs. Heavy hardware-intensive gaming will be done on consoles, and the only uses for real computers will be in the corporate world and the enthusiast market.
I miss the days when playing with Amos was cool.
