About the Offering Common stock offered in this Prospectus Supplement $15,000,000 aggregate gross sales proceeds
Common stock outstanding before this offering 54,388,917 shares (1)
Use of proceeds See “Use of Proceeds”
NASDAQ Capital Market symbol PPHM
________________________ (1) The number set forth above does not include 5,877,925 shares of our common stock that, as of June 21, 2010, are reserved for issuance under shelf registration statements, stock option plans and warrant agreements, calculated as follows: