I own a Jewel Diamond 2600, which basically is the Uniwill 259-EN3. Inside there's an Intel 915GM and a GeForce 6600 Go (MXM). There's a hardware switch to choose between the graphic cards, I've never actually figured that DSDT might show more information about the device in use at that time.
I thought I'd add my odd entry too:
I own a Jewel Diamond 2600, which basically is the Uniwill 259-EN3. Inside there's an Intel 915GM and a GeForce 6600 Go (MXM). There's a hardware switch to choose between the graphic cards, I've never actually figured that DSDT might show more information about the device in use at that time.