The Bolt M-1 (a 140lb, moped-style electric bike with a 5500-watt mid-drive motor and a 1.6kWh LiFePO4 battery) is now taking pre-orders.
The bike is so different from traditional ebikes...it's almost its own category, really. It does offer an Economy mode that ostensibly makes it a street-legal bicycles in California (1000W, 20MPH top assisted speed), but riding it as a bicycles is probably going to be illegal in most places.
Seems pretty interesting, though. This could be the beginning of a new category of light electric vehicles.
Crowdfunding campaign link