I worked through some sales projections for Omontys in a previous Mailbag, which still hold true but are admittedly fairly conservative. A big unknown right now is the pricing advantage Omontys may have over Amgen's ( AMGN) Epogen. Affymax announced wholesale Omontys pricing that's on par with Epogen but also said discounts and other cost savings (as yet undisclosed and unspecified) will make Omontys a better value for dialysis clinics. Investors want more details on Omontys' pricing advantage over Epogen. --Written by Adam Feuerstein in Boston. >To contact the writer of this article, click here: Adam Feuerstein. >To follow the writer on Twitter, go to http://twitter.com/adamfeuerstein. >To submit a news tip, send an email to: email@example.com. Follow TheStreet on Twitter and become a fan on Facebook.