I thought this too, until I tried to read a novel on my ipod Touch. Admittedly, I used Kindle software rather than GoodReader, so maybe it makes a difference. But I found that having the pages come in such small chunks made reading very tedious.
Still, I like having ebooks available on my Touch and my Blackberry. Since I always have at least one of them with me, any time I have to wait around somewhere, I have reading material at the ready.