Great DD! A large part of my portfolio is in NEPH, which has been doing well. They still have 2 FDA approvals and a DOD contract(s) right around the corner. The stock should exceed $3 shortly, and climb to $5-7 thereafter... giving them a good opportunity to relist back on AMEX.
I noticed XCHO back on 7/25/09 from doing my usual research on hidden gems. At that time, there was hardly any activity... and it appeared as if Xenacare was a dead stock. I kept it on my watch list, for many reasons. Kudos to $heff for bringing so much attention to XCHO. This company is definitely undervalued, with a ton of potential.
I will be looking for an entry point, to buy shares this week.