POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Paul J. Orfalea, Lance W. Helfert, and R. Atticus Lowe, hereby each constitutes and appoints Linda Schuman, Paul J. Orfalea, Lance W. Helfert and R. Atticus Lowe, and each of them, as applicable, as true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution in name, place and stead, to sign any reports on Form 3 (Initial Statement of Beneficial Ownership of Securities), Form 4 (Statement of Changes in Beneficial Ownership of Securities) and Form 5 (Annual Statement of Beneficial Ownership of Securities) relating to transactions by the undersigned in Common Shares or other securities and all amendments thereto, and all filings on Schedule 13D or Schedule 13G, and all amendments thereto, and to file the same, with the Securities and Exchange Commission and the appropriate securities exchange, granting unto said attorneys-in-fact and agents, and each of them, or their substitutes, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, and each of them, or their substitutes, may lawfully do or cause to be done by virtue hereof. This Power of Attorney shall be effective until such time as the undersigned delivers a written revocation thereof to the above-named attorneys-in-fact and agents.

The undersigned each acknowledge that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.

Dated: July 24, 2007	/s/ Paul J. Orfalea
	Paul J. Orfalea

Dated: July 24, 2007	/s/ Lance W. Helfert
	Lance W. Helfert

Dated: July 24, 2007	/s/ R. Atticus Lowe
	R. Atticus Lowe