According to ATD HP Loses VP of Product Management for webOS to Numenta | John Paczkowski | Digital Daily | AllThingsD
Joe Hayashi who leaved recently HP for Numenta
Joe Hayashi leaves HP for Numenta, drinks with old friends | | The #1 Palm Pre and Pixi Community
was already replaced by Lee Ott Head of webOS Product Management

His profile on linkedin:
Lee Ott | LinkedIn