Careful there; PTD has no real revenue at present except for a few dollars. The negotiations with J&J haven't even started. The Original Patents will run out in August 2010.
As to Abbott, wait and see.
There is nothing wrong with one product as long it is a super device and it is. It is a no-contest be it on quality or cost:
http://www.hotcopper.com.au/post_thread.asp?fid=1&tid=50511#125601
They also said there could be spinoffs as well.
Gerry