unichip's suck.
They're one generation behind piggybacks that cost 2-3x as much as piggybacks from THAT generation that can do more - and you can't reprogram them.
Buy something descent. SMT-6, or an E-Manage w' upgrades.
For that matter, for the insanely stupid cost of a unichip, you could buy an SMT-7, or e-manage ultimate - which are the #1 & #2 most powerful piggybacks in the world currently.