THATO  So far this software has been great, the only other thing I would ask is a citeulike sinchronization option (or even a subscription like iCal calendars).

Since my demo is over, I might buy it when I get some money =(  (Version 1.8)

BOMBADIL  I've been using Papers now for nearly a year and it is one of my top favourite and most useful apps I've ever bought.

I'm a geology Ph.D student and tried to use Sente but found it too biomedical-centric to be practical for me.

A few of the gems that I find especially useful:

- the ability to find & download articles directly within Papers

- the 'Authors' tab which searches the latest publications by a chosen author in your library - fantastic way to be up-to-date on a leading researcher's findings

- the export reference is easy to paste directly into the manuscript you're working on before you do the reformatting for the journal in question

Requests and suggestions for improvements:

- add some sort of highlighting functionality as in Preview app or Skim. While the Notes tab in Papers is useful, one tends to forget to look there if it's not selected. I find myself opening pdf's in Skim and making highlights there, then saving and returning to Papers.

- I love auto matching function to get metadata, but it only works for newer publications in my experience

(Google scholar integration is awesome I must say!)

Highly recommended app if you read a lot of articles, and it has inspired me to scan my paper reprints and go paperless :)  (Version 1.7)

TOMECK  The approach of Papers is very interesting and the implementation of different online sources seems to be smoothly.

The scope, however, is science focused and I could not see a easy way to integrate social science online sources, in particular law journal etc. online sources. I have noticed the "plug-in" option but I haven't either the ability nor the time to do so.

It would be interesting to learn if Papers will be developed for social science in the near/middle future. If so, I would buy the software immediately only to support this project.  (Version 1.7)

EL-CRAVITO  There must be some problem today with the download of version 1.7 of Papers. I have tried for five times and the download is never completed. It stops for some unknown reason and does not reach the end. That's probably the reason why the DMG does not mount: it is not complete. (Trouble with the server?) Sometimes the download ends at 4 MB. Sometimes near 19 MB. But I never got the total 20.2 MB, which is the size of the DMG file.  (Version 1.7)