I think there is a bit of misunderstood information going around here.
As many have already pointed out, the viewing angle of the display is very narrow, and it makes portrait orientation difficult to read.
However, its not as bad as they make it sound (horrible screen? Really? you clearly have NEVER seen an actual horrible display. Look at some of those super cheap (sub-$100) tablets and CE netbooks from no-name companies, and you'll see what I mean).
Meanwhile, on the G-tabet I've read comics in portrait, and all it takes is tilting the display a bit away from you (the side with the camera slightly angled towards you), and the inconsistent backlight problem that we are complaining about improves dramatically. I had a similar problem on an old gateway tablet convertible running winXP- most classic LCDs are like this when turned sideways or bent at wide angles, its not any worse than a standard netbook/laptop display. Calling the display so terrible is only when comparing it to much more expensive tablets (Xoom, Galaxy Tab, iPad, etc).
Which brings me to the next point- You can't compare this to the more expensive tablets. Personally, that's ok because the concept of a tablet that costs more than a netbook is a fail in my book. Tablets should not cost more than $200-$300 in my opinion because they are NOT designed to replace laptops! They should be priced about where netbooks are because that is what role they fill- casual low-power computing for those times a full blown laptop would be overkill.
I have a 15" laptop that I use for work, but when I'm just reading the news over breakfast, or taking something in my suitcase on vacation, I used to have an Acer Aspire One (a previous Woot) that was much more convenient to use than my laptop, and also more expendable and replaceable at its price (taking it camping or throwing into a luggage bag, or letting my kids play with it are things I would be nervous to allow my expensive work laptop to go through). Since buying a G-tablet a couple of months ago, I can say that I no longer see the need for a netbook and will be putting it on ebay shortly. I actually use the tablet more than I did my netbook (browsing from the couch and playing touch-screen games are more fun than micro-laptop computing!).
There's even this great blog post I mentioned earlier that describes how to make the tablet do things normally reserved for a netbook:
I've found that it really can and does fill all the purposes of my netbook. Especially now that Hulu and Netflix work perfectly on it.
And finally, here's the big thing I want to mention-
DON'T BUY THIS TABLET WITH THE INTENTION OF IMMEDIATELY RUNNING HONEYCOMB ON IT!!!
Yes, Honeycomb roms exist, but they are not 100% working with the hardware since there are not any native drivers for video acceleration, etc. Even Gingerbread roms stutter and have trouble playing back HD video content because the drivers for the Harmony chipset (the Tegra platform used in this tablet) only exist for FROYO!!
So yes, you can install Honeycomb roms and appreciate how cool it is, but you will be taking a performance hit (and in some cases a noticeably stability hit- some HC roms I played with force closed a lot of apps and didn't work with some of the native hardware at all). VeganTab 5.1 or Brilliant Corners are excellent ROMS based on Froyo that offer full speed acceleration and 100% of the hardware working (camera, etc). With so many people going gaga for the hacked-together Honeycomb roms, I felt this needed to be said.