The Pocket eDGe is small and convenient, about the size of a diary/journal, probably fitting into whatever purse/case (or large coat pocket) you have with you all the time now. It's great for jotting short notes, shopping lists, etc. Podcasts, streaming music/radio, and MP3s are quite a delight on the eDGe. For this, I'm sure you'll be thrilled with the Pocket eDGe.

However, for even things like meeting notes, the large eDGe is better. PDFs formatted as 8.5x11" pages are unuseable on the Pocket eDGe unless they "reflow", which rules out multi-column PDFs and PDFs with diagrams, figures, equations. The zoom & pan functions are effectively unuseable, and landscape eInk is yet to be delivered. The large eDGe is more like carrying around a full size textbook - it's heavier, and not something you can "casually" pull out and use. You'll likely need a separate case for it, or a backpack. However, PDFs work much better on the larger eDGe, and you can take endless notes very easily on it without having to flip to a new page every minute.

So, if you can perhaps describe the nature and source of your PDFs, we might be able to chime in with more detailed opinions.