PERTH, Australia & BOSTON--(BUSINESS WIRE)--March 22, 2006--Global bio-nanotech company pSivida Limited (NASDAQ:PSDV)(ASX:PSD)(Xetra:PSI) today announced that the company’s CEO/Managing Director, Mr. Gavin Rezos, has provided an update on the company’s progress in an “Open Briefing,” available at www.corporatefile.com.au and at the company’s website: http://www.psivida.com.