> its PowerVR Lite 3D core, for which there's never been a public driver...

Really? Not even in Linux binary form? I've been under the impression that the driver just wasn't open sourced. (A MorphOS driver would have to be developed from docs either way.)

> I fear even the CherryPal/LimePC, being consumer products, are still
> severely crippled by unefficient software.

It would be interesting to see if the pre-installed Linux OS on the LimeBook/Linkbook or the C114/C120/LimeBox/X1 supports the 3D core of the MPC5121e. A real shame if it doesn't.