Also, for those complaining it costs more than the 1/10 Slash, it apparently comes with a battery and charger. That would account for the relatively high price.
I just checked my "sources"

and the ETA is 4/30. It also includes what is listed as a "Brushless 1/16 E-Revo" under a separate part number close to the Mini Slash. I'll let you guys know when I find out more.
BL Revo: CF G2R, LMT1940/7, 6S FP 30C Lipos, MMM, Hitec 5955TG
CRT .5: 7075 Ext Chassis, LMT1930/7, FP 25C 3S Lipos, MM