Yup, it's pretty rad. It's one of those things that sounds too good to be true though.
They've got like 5.5 million dollars through kickstarter for it,
Have at it: It's easy to root (and rooting won't void your warranty). Everything opens with standard screws. Hardware hackers can create their own peripherals, and connect via USB or Bluetooth. You want our hardware design? Let us know. We might just give it to you. Surprise us!
Tegra3 quad-core processor
8GB of internal flash storage
HDMI connection to the TV, with support for up to 1080p HD
WiFi 802.11 b/g/n
Bluetooth LE 4.0
USB 2.0 (one)
Wireless controller with standard controls (two analog sticks, d-pad, eight action buttons, a system button), a touchpad
ETHERNET! (Announced by Muffi 7/18)
I'm hoping it's a success and it stirs up some competition coz the industry really needs it.