Well, its officially out:
http://www.tamiyausa.com/product/ite...oduct-id=56335
Then again, ignore Tamiya's MSRP, as only an idiot buys it for that (or someone desperate to be the first to have one)
As to reviews...
http://www.rctech.net/forum/rcmart-c...5-stocked.html
And thats from a seller.
One warning: the MFU with its control box only come included in Japan. You have t buy it separately if you are elsewhere.
eBay.com average list price: $335-340 USD and shipping.