There's limited information on their website, but a post I read on Facebook stated it uses the exact same panel as the Gameboy Micro. So that's exciting. It looks to have a similar profile to the Gameboy Pocket, but smaller.
Source: http://www.revok101.com/revo-k101-mini/
Pictures:
Source: http://www.revok101.com/revo-k101-mini/
Pictures: