"Leaba is an early stage startup that had been operating in stealth mode. The acquisition was announced Wednesday in a blog posting by Rob Salvagno, head of Cisco’s M&A and venture investment team."
http://www.eetimes.com/document.asp?doc_id=1329091&
http://www.leabasemiconductor.com/about-us/
Lots of "Stealth mode" going around these days