Well I was gonna give a complete review, but got called away for the afternoon, but you should should go check out the new ebrary iOS app (links to the Cdn iTunes store, so YMMV). I can tell you that it works pretty well, though is a little light on the feature set. You'll need an Adobe Digital Editions account, and will need to have an existing ebrary account set up from the full platform website. Here's ebrary's brief introduction to the app.
I'll tell you what though, it's sure a lot easier than the initial download option :-)