You simply can't use these things outside.
Apple has an option for a matte screen on the larger MacBook Pros - I can use it out on the deck in sunlight and it's perfectly readable. If it were a $50 or $100 option on the iPad, I would jump on it. I just doubt it makes sense for Apple, though.
My favorite app is something called Instapaper. It's a $5 app and although there are free competitors, I prefer it.
How it works...it's a browser add-on in the iPad's Safari browser and also works with Zite (a must), Stumbled-Upon, etc. Whenever I see an article that I want to save, share, read later or keep for reference, I can save it to Instapaper with one tap and then the article is available to me on my phone, computer or iPad.
Another handy thing with the iPad (or Kindle) - whenever you buy something that has a manual, download it online and have it saved to your library on iBooks or your Kindle library. You'll always know where it is when it comes time to order parts, make a repair, etc.