Google have received permission to purchase the patent portfolio of now defunct, Modu, a modular Cellular phone company.The Israeli company came forward in 2008 with miniscule phone that could fit into different sleeves and perform different tasks.
But there were no carriers to support the phone like other industry leading cell phone. Modu produced a bunch of small cell phones and even prepared for an IPO. Instead, Modu was forced to close the doors. May be we will see some modular Android phone or the likes of it.