Well, after I learned about inserting PDFs into Word files (thanks, Archangel!), I made a Word document with some imbedded PDF files (both as icons and as straight copy 'n' paste). Then, I tried to open the file with Goodreader after putting it into my Dropbox account. No go.
It also doesn't open in iAnnotate, iCab, Dropbox (as in, the Dropbox preview doesn't show the PDFs), Docs2Go or Flip Reader. This is with the document as a .doc or .docx Word document.
Then, for the heck of it, I saved the Word document as a PDF, with the PDFs still embedded. Again, nothing could open the embedded files. They see the icons as just pictures. You CAN see the PDF file that was pasted in, but that doesn't help keep a nice-looking document.
Almost becoming a challenge here ... but, so far, can't get anything to open the embeds.
Marilyn