Lenovo has been teasing the world with its U1 hybrid tablet since CES 2010.  Today, the tablet finally made its way through the FCC thanks to a filing by Lenovo’s OEM partner Compal Electronics.

The U1 consists of a tablet and a netbook-like keyboard dock.  When Lenovo first unveiled the U1, the tablet ran Windows when docked and a custom Skylight Linux OS in tablet mode.  Since then, Lenovo replaced Skylight with Android 2.2 – a wise move since the last thing the world needs right now is another tablet OS.

Lenovo has not yet announced a release date for the U1, but today’s FCC filing is a good sign that the U1 will actually make its way to the hands of consumers.