I've seen a number of folks here on Mobileread who in addition to owning an ereader, are also Ipad users.

I've never owned an Ipad, but am considering one. I also own an ereader as well as a smart phone, and an (aging) Android tablet I need to replace. This is where the Ipad might come in as a replacement, as the Android tablet scene is pretty bleak right now. My current use for the tablet is primarily web surfing, and reading larger documents with complex layouts or books (such as books with computer code) that don't work well on a phone or ereader.

With your Ipad, I'm super interested to know a few things.

1. What are your chief uses for it? As in, what kind of documents/activities do you prefer to do on your Ipad, versus your ereader?

2. What size do you find to be the minimum size that will effectively render larger/complex documents with good readability? For example, would the original 9.7" Ipad work, or did you try that and find it was a bit too small in screen real estate?

3. Do you find the Ipad to be too heavy for extended reading sessions?