I found it easier to measure luminance uniformity in the portrait mode (home button on the left side). That's something to keep in mind if you're concerned with different viewing angles.
| Apple iPad | ||
|---|---|---|
| White Luminance cd/m^2 | ||
| 321.8539 | 333.5493 | 318.1339 |
| 342.3393 | 367.8701 | 335.3562 |
| 350.5158 | 333.3676 | 323.7054 |
| Black Luminance cd/m^2 | ||
| 0.5494 | 0.5354 | 0.5822 |
| 0.5617 | 0.6116 | 0.5861 |
| 0.6721 | 0.6600 | 0.5623 |


White and black luminance tend to be better towards the center. For some odd reason, though, only white luminance looks worse toward the edges. Meanwhile, black looks too bright near the center and center-bottom.
| Apple iPad 2 | ||
|---|---|---|
| White Luminance cd/m^2 | ||
| 330.0356 | 332.3039 | 358.7569 |
| 369.7601 | 363.3693 | 390.1944 |
| 385.2036 | 380.3892 | 380.3814 |
| Black Luminance cd/m^2 | ||
| 0.4470 | 0.5004 | 0.4247 |
| 0.5082 | 0.3999 | 0.4216 |
| 0.4921 | 0.4305 | 0.4184 |


The iPad 2 achieves better brightness, but uniformity looks skewed. White luminance, in particular, appears very different if you're viewing from the top and bottom. Thankfully, black luminance appears more uniform.
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Summary
- My iPad (The Original Flavor) Experience
- Meet iPad 2: Thinner And Lighter
- Processor Performance: Now Dual-Core Flavored
- GPU Performance: More is Better
- Better Gaming: Infinity Blade And Real Racing 2 HD
- Display Quality: Color Gamut
- Display Quality: White And Black Uniformity
- The User Experience: iOS
- HDMI Output And Camera Quality
- Real-World Performance And Battery Life
- Final Words
Ask a Category Expert
The XOOM could be a good choice, or the Asus Transformer.
Cheers!
Cheers,
Andrew Ku
TomsHardware.com
Here is an article that Apple fanboys would be glad to rip up.
Fixed it for you.
Like most computer guys like myself, adding an ipad won't make us to pack our PC/Mac to our closet. But again, mistakes like Microsoft or Linux, the "most computer guys on earth" are actually just a small group in total.
For example:
i've been teaching my 80 years old grandma to use pc to download, install and play simple games for years, no success. then she learned how to find/download/install/play many games after few days playing with my ipad.
my 5 years nephew reads/plays/watch cartoons all on ipad now, she didn't turn on her pc for weeks.
For myself, i uninstalled all my online video, movie client applications from my laptop, as I found watching these on ipad is much comfortable.
Yes I still do my works on my pc, mostly in my office. At home, now the only thing force me to turn on my pc is to play world of warcraft
I mean, who says ipad can't replace anything?
I'd actually argue that in your case you're not replacing a PC, you're augmenting it. Granted, there will be others like your nephew and grandmother who can use an iPad as their primary device.
P.s. I use an Acer W500 and I still struggle to justify why i have it.
Oh, don't get me wrong; I think they'll make their permanent mark on the smart phone and laptop scenes, the devices that really fit into people's lives - but the tablet is too limited and too clumsy in actual use.
Certainly, they have their niche uses - as book readers, like the Kindle, for example, but as something that will actually replace anything, I think not. Lots of coolz, little practicality.
They don't "add anything to what you can do", but they do certain things much better than other devices.
Reading this article on my iPad while sitting on a sofa was certainly much more comfortable than reading it on my desktop or laptop.
You need a more comfortable computer chair. =)
You should have taken the money you spent on your ipad and bought a more comfortable desk and chair for your desktop. Then a few cases of beer.
Oh, and using a stylus to type sucks.