Asus EeeBook X205TA
http://www.notebookcheck.net/Asus-EeeBook-X205TA-FD005BS-Netbook-Review.131308.0.html
man dat low power consumption/battery life
noice !
Would like to see more optimised machines like that in Windows world
Completely not impressed at all.
TLDR: 9 hours battery life with wifi and video playback is not impressive at all when you get a crappy experience. Having a Twisted Neumatic Screen with 260 nit max brightness is a sucky experience. Having to watch the videos at 134 nits for 9 hours is a crappy experience. Using the cpu fully with the screen at 260 nits, max brightness is only 5 hours of battery life.
I am sorry but I am not impressed at all, and this is why netbooks suck. If you want a portable device you want something you can use outside for the purpose of netbooks is the ability to
travel. That means at least 400nits so you can actually see the computer if you are outside or if you can't control your environment and the room's lighting. Furthermore you should have a quality screen such as an IPS or a VA panel if you are going to be staring at the screen for hours. Worse it is not just a TN panel but a glossy TN panel so you need even more brightness to counter glare.
Compare these tablets which have IPS screens (info from anandtech bench)
583 nits Google Nexus 7 (2013)
480 nits Samsung Galaxy Note 8.0
445 nits Samsung Galaxy Tab Pro 10.1
427 nits Samsung Galaxy Tab Pro 8.4
426 nits Apple iPad Air
These are all ips panels, with dpi of 260-360. IPS screens take more power, and higher dpi take more power. The tablet you linked to has a dpi of 135 for comparison, while I do not want amazing dpi on a windows machine and at that screen size it is fine it still shows that battery life is not impressive.
I would not consider the macbook air 11.6" 2013 Haswell a great screen but I am comparing it to this netbook since they are the same screen size, both TN, and same resolution. That screen gets 345 nits according to anandtech, and while different testing methodology gets 8.67 hours battery life running the light workload at 200 nits, 6.45 hours at medium workload, and 4.07 hours running the anandtech heavy workload.
Now I understand these devices have completely different price points but why would I want to subject myself to a subpar netbook experience? A nexus 7 2013 is far more usable for a travel device.
If you need typing capabilities you can get an acer aspire switch with a 1366x768 ips screen and 329 nits for about $300, or the better 1920x1080 ips screen and 407 nits for $500.
The 1920x1080 screen version gets 453 minutes of battery in notebookcheck wifi test. I understand 545 minutes for your ASUS with a TN screen is an extra hour and a half, but at least the switch is usable as a device and not a subpar experience. Oh did I mention that the 1920x1080 ips screen acer has a smaller battery? 38wh for the asus, 24 wh on the acer.
I have not see numbers on the new toshiba 13.3" chromebook with 1920x1080 ips screen from notebookcheck or similar websites, but that screen is supposedly 1920x1080 with 340nits, ips, and "up to 9 hours" of battery life (whatever up to 9 hours means, this is why I am waiting for a review). And you get this type of device for $310 right now.
There is a reason why people are going away from windows computers, and it is stuff like this the OEMs pull. I understand you are trying to hit a certain price point $200, but when the android devices have decent screens at this price point, and the windows devices do not, you are going to see more people buy android than windows.