Althought not exactly the same, I bought a Gateway ZX6800 All-in-One with Windows 7 Multitouch 23" screen back in October/November last year for my kids. It was $999 with QX8300/4GB DDR3/1TB SATA. But Acer/Gateway is the same company now.
The multi-touch for Windows 7 is like Senna4eve mentioned, not presure sensitive. There are optical sensor around the screen and it detects the cooridinate of the sensor being block to achive the touch feedback. However, there is an extra layer of hard plastic covering up the to protect the surface. Therefore, stylus is ok. It actually detects the touch without physcially touch the screen. That's also why is much cheaper to produce than tranditional touch film. No calibration is needed either becuase there's no overlaying film. It's always accurate.
It's fun to play with the Windows 7 touch pack, but it's not good enough for FPS. I tried L4D on it. But it could be because the system has slow graphic (X4500HD). There's a little delay on the touch response in the game and I'd rather use mouse with the game.
I tried Bejeweled on it. It's prefect, except my hand gets tired after 5~10 minutes.
Flash games for kids are good enough. You can interact directly on the screen. But I found my kids often just grab the mouse instead.
But for $380~, you can't even buy a tranditional film touch screen at 15".
A 19" tranditional film touch screen can easily go up to $600~800+.