I have to read lots of PDF books on my iPad but I also need to make notes (annotations), notes that I want to be able to transfer to the Mac later.
What solutions do I have for this?
Please do not not provide more than one suggestion per answer. Also include link and pricing information in the first line.
Example: ## [SomeApp](http://...) 4$
Best Answer
GoodReader $4.99
I can't compare it to any other PDF reader for the iPad, but I've been very happy with GoodReader. From the marketing spiel on iTunes: