from SC 13D/A
1 page
Exhibit 1 - Cusip No. 742942105 13d Page 10 of Pages 10 - Joint Filing Agreement the Undersigned Hereby Agree to the Joint Filing With Each Other of the Attached Statement on Schedule 13d, and All Amendments Thereto, and That Such Statement and All Amendments Thereto, Is Made on Behalf of Each of Them. in Witness Whereof, the Undersigned Hereby Executed This Agreement on February 15, 2007. Vertical Ventures, LLC By: /S/ Joshua Silverman Name: Joshua Silverman Title: Authorized Signatory Iroquois Capital LP By: /S/ Joshua Silverman Name: Joshua Silverman Title: Authorized Signatory /S/ Scot Cohen Scot Cohen /S/ Richard K. Abbe Richard K. Abbe <page>
