I wouldn't want one for those tasks.

I have an iPad. I love it. I use it for a lot of things. What don't I use it for? Reading email and Internet browsing. Of course, I never liked using a laptop for that either. I only use a laptop or the iPad for those tasks when I have to (when traveling). I find using an iPad for those tasks feels crippling; I just can't go as fast or get as much done on them. With my well-over-40 eyes, I am much more comfortable with a large screen, preferably two, especially because I tend to have more than one thing open at a time. I do love the fact that the iPad can be used in so many comfortable positions, many more comfortable positions than a laptop. I love the easy-on-the-eyes screen. I love my iPad for watching movies instead of watching them on the TV. And the iPad is a comfortable way to read, especially for older eyes like mine. And pictures look fabulous on it. The iPad is good for games too; and there are lots of great apps, apps for just about anything that interests you. Most of the apps I use are "natives," unlike email and the Internet. I use the device most suited for my task: my desktop for email and the Internet and for anything that involves a lot of typing and a word processor, and I use my iPad for most other things. I wouldn't worry about it being hard to learn to use an iPad at all; there is only a very small list of things you need to know; it is much much easier to learn to use than is a computer. (Note that I have no experience with any other tablet brand.)