The (AT) NGW100 was the second, and way cheaper, development kit released by Atmel for developers to adapt to the newly invented AVR32 architecture.
In contrast to the SD-RAM equipped STK1000, the NGW100 comes with slower D-RAM, but 4 times as much memory: 32 MB instead of just 8MB.
Without display the NGW100 is more intended for network products, and due to the lower price can be used to base for products.