Despite the TI OMAP being just as capable (or more so in some instances) than the Tegra 2, Nvidia has used their clout to "influence" many developers into making Tegra2-exclusive versions of their games. This of course only leads to even more fragmentation within the Android world.
Now, you COULD try to root your device and use Chainfire 3D to emulate the Tegra2 system calls but I haven't tried this personally (I have a Honeycomb tablet w/ T2 and a Droid X2 with T2).