> It seems more capable than Mamba.

I'm not sure if Mamba is really less capable than Gemini. For instance, Mamba has a DDR3 memory controller whereas Gemini only has a DDR2 memory controller. Is there even one single technical spec where Gemini outdoes Mamba?

> At 1.5Ghz, the Mamba doesn't appear to be that
> competitive with Freescale's P20XX.

I think that depends on which QorIQ P20xx you compare Mamba to specifically. Mamba is clearly superior to e500v2 based P2010/2020, but e500mc based P2040 could be about on par with Mamba (not taking into account the difference in CPU core amounts, that is).