> I'd like to see the 5121e with 512 megs or a gig of RAM.

https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=6436&forum=11&post_id=68695#68695

> I don't think Freescale has abandoned PPC at all. Aren't they still making
> stuff for cars etc.

Yes, and for much more:

http://www.freescale.com/webapp/sps/site/homepage.jsp?code=PCPPCP

> and THTF's PPC computers sold in Asia, such as LimePC X-1?

No.

> Or does THTF make it all itself?

Yes.