Nook HD is by Barnes & Noble and is a 7" tablet form factor device.
The Nook-HD consists of the following spec:
- 7" MultiTouch Capacitive IPS LCD @ 900x1440px
- TI OMAP 4470 Dual core processor running @ 1.3Ghz
- 1GB RAM
- Maximum external storage capacity up to 32GB
- WiFi supporting 802.11a/b/n/g standards
- Bluetooth
This is a direct competitor to the Amazon's Kindle tablet factor and runs Android's ice-cream-sandwich (ICS v4.0.x)
Details of the review of the tablet can be found here on TheVerge