CaedenV :
Um.. I have a few netbooks, both ~1-2 years old, and nither one has any problem at all running Aero. Aero takes very little CPU/GPU power. The move away from Aero is merely because they want to move in a different direction with the interface, and want it to be a seamless expierence between the 2 UIs.
Agreed, moving away from the sleek glass look is a bad idea. But to say that it is for the sake of performance is a bit much to swallow.
I would normally agree to the performance assessment.
I have ran Aero both on an ancient laptop's GMA 950 and the woman's Atom N450 (a GMA 950 derivative; the GMA 3150) based netbook with no issues.
Unfortunately, Intel's new Pine Trail Atom processors completely replaced their old IGP with a PowerVR SGX 545 based 'GMA 3650'.
This seems to have been a real mistake as it seems Intel can not create working drivers for it.
From Anand's review (if the link posts right now: http://goo.gl/ve4K6), drivers where completely inoperable.
It took the manufacturer of the test system sending him a new system with 'working' drivers slipstreamed into the instillation to get stable output.
Even then, Aero was out of the picture as it induced massive amounts of lag into the system.
Just think about how bad the situation would have to be to produce a paragraph like this one; the GMA 3650 drivers were incapable of handling a blank desktop. It didn't matter if I changed the resolution or reduced Aero Glass, it just wasn't happening.
The updated drivers fixed the situation...sort of. The GMA 3650 can now run Aero Glass at 1080p, but extremely slowly. Trying to move windows or even do anything results in a tremendous amount of lag in the system. Understanding Atom tends to be confined to the Aero-free Windows 7 Starter, it must be noted that the last generation of Atom processors was actually able to handle Aero Glass just fine. Circumstances are dire when Aero Glass gives your graphics solution problems.
Why is this important you ask?
Two reasons.
1) Until recently Aero was enabled in Windows 8 preview builds (as was the option to disable it).
2) The majority of x86 tablet manufacturers are going to be using the latest Intel Atom chips (Pine Trail with the broken IGP).
To this I draw the conclusion that Intel and possibly vendors pressured Microsoft to remove Aero when it became clear that Intel's drivers would never be up to snuff.
It just would not be in their best interest to have another Vista moment where there are no working drivers for common hardware components, dragging the overall user experience down.
For me personally, the loss of Aero is more disturbing than the loss of the start menu.
Not really because of the missing eye candy, more for the loss of functionality.
I regularly take advantage of Aero Peek and Snap to increase my productivity when digging around through multiple documents and programs.