> This "Linkbook" looks like the enhanced LimeBook I'd love to own.

Enhanced? You mean the software side?

> is it really an MPC5121e powered device?

See your link to powerdeveloper.org where I quoted from ;-)

> Not even the "linuxfordevices" link assures so...

"The CPU is presumably one of Freescale's PowerPC processors" could go into more detail, yes.

> it says: "the projecth has morphed over the years"

That line is aimed at the OLPC project, not at the Linkbook.