Is that data plan for real? It's better than most ADSL packages in the UK. It's that kind of deal that is required to make cloud computing work.
Also, if it's possible to make a tablet with decent battery life and a 1920x1200 screen, can I please have a laptop with a 12 or 13" screen with a similar resolution. How hard can it be?
There's a good reason why Amazon have 20% of the US market and it's because the released a tablet for $200. The new models beat the nexus on spec and/or price so the question is just whether you want Google play on your device, or if you're happy with the Amazon app store.