I am presently using Cloudreader. I really like the app, but one limitation that bugs me is no support for multiple files to be opened (preferrably tabbed). I haven't tried Goodreader, as I've read that it may be slow to render some files. Since it doesn't look like Cloudreader will be updated anytime soon (ever), any suggestions for something similar that is also very quick?
Being able to catagorize files would be helpful as well, my current list of PDF's that I use daily or weekly is up to several hundred. Going through a large list to find the correct name is a bit cumbersome.