Has anyone ever used the built-in Ethernet capability of the Due's chip?

According to the Arduino Due specs (http://www.atmel.com/devices/SAM3X8E.aspx?tab=parameters), it has built-in hardware-based Ethernet capability, with no external shield or anything. Has anyone tried it or gotten it to work?

The datasheet, pgs. 1242-1309, also explains it. It has 10/100Mbps speeds.

I used the search terms DUE Ethernet. Came up with quite a bit.

I'll share one thread that several were involved in from USA, Mexico, Australia, Venezuela and Argentina.