Hi John,

>The thing is, how the heck do you keep up with pace of new book versions. The cost is getting out of hand. I think tech-books lend themselves to this medium. It is more cost-effective, and , you can annotate the book...

That actually makes more sense to me than reading a novel on an eBook reader. However, if the book is updated regularily, it would really help if there's some sort of change log so I can see what articles/chapters have changed since the last update.

Christof