I do a lot of creation, rough concept drawings, mechanical drawings, typing, brainstorming no matter which device I'm using. 80% creation 20% consumption.
When I got my first iPad1 I used it for a month, hated the touchscreen keyboard and labeled it useless unless reading, watching, playing .... it ended up in a drawer.
About 8 months later I started using it again, pulled it out to load movies for a trip I think. I'm not sure what or how it happened except to say I started using it, typing more, checking out app's, doing some rough product idea sketches and in a short time I'd feel lost if I didn't have it nearby.
From that time to now I use my now 3rd gen iPad alongside my MacBook Air and iPhone all day, everyday. Its an incredible set up.
Here's some tips that should help:
1. USE the touchscreen keyboard (I prefer widescreen) you will be amazed how fast you get. If you need a real keyboard use your Mac not a third party iPad keyboard > defeats the purpose of the iPad, imo.
2. USE Dictation, it is AMAZING. I didn't feel comfortable using it at first. Now I bang off emails, posts, notes, and idea's using Evernote or Notepad for example. It's an inredible feature that everyone should use. Why type when you can talk? Get more done in less time.
3.Buy a Yoobao cover - instant on and very thin profile.
4. Research apps and check out the AppStore, lots of useful apps and tools out there.
By the way this post was written using dictation on my iPad.