Can montavista Pro 5.0 on OMAP-L137 support Montavista graphics(MVG)?

The OMAP-L137 has no video display capability, therefore it is unlikely that there will be a port of such graphics packages for it as they are dependent on a framebuffer driver that will not exist. The software itself will probably run (it is just another ARM after all) but with no display capability there is not much point.

CORRECTION:

A frame buffer driver is in the software roadmap so if this device goes like the Davinci devices have there will be a port of X for it, the catch is that currently the hardware for the LCD is not widely available yet, plans are in the works to get the LCD hardware out there however.