My suggestions worked more than fine for myself and for many others, or so it would seem, but not for you.
OK, but then be clear that you are suggesting something different than what I was asking for. You could have said for example "I don't know how to do what you want to do but if you try this app then it allows you to read their selection of free PDF books instead of getting your choice of ePUB or MOBI books." I think I was pretty clear that what I wanted was a way to download a free ePUB or a MOBI file that I find at some location on the web to an iPad and read it there -- that is after all what most people would consider "The eBook Experience" -- the ability to actually HAVE an ePub or MOBI just like you have HAVE a paperback or you actually HAVE a printout if you prefer to print out a postscript copy of a PG book on your laserprinter. And by HAVING something I mean you can take it with you and read it on an airplane or on a beach -- all those things that people are used to doing with a paperback or a printout and are used to doing with other ebook readers. I would hope we could agree by now that this is not the iPad business model. Rather the iPad business model is either you "buy" the book from Apple (including a subset of "free" books that Apple has rebranded as coming from Apple), or if you are a publisher you write your own applet for iPad to distribute your own works (I guess PG can write its own applet if it wants to have a presence on iPad but I'm not sure I'm the one to take that one on -- maybe PG already has an iPhone programmer somewhere who can take that one on?) or if you are the person who actually bought the iPad you are given your own degraded transfer path via internet->desktop->iTunes->USB-iPad where presumably Apple is blocking that wifi transfer path for the same reason that B&N nook is blocking the wifi transfer path, namely to sell more books. Sorry but having already hooked up a ebook reader to my desktop by USB 1000+ times I can assure you that the USB connection path starts to get really really old!