The Epson Moverio doesn't work with the I1. There is a work around but the lag makes it unsafe to fly.
Lots of members here own and use the Zeiss Cinemizers with the I1.
A lot of people recommend the Sony HMZ-T3 as it can play 720p which is what the I1 streams via the HDMI outlet.
Or, you can wait for the Avegant Glyph which will be released later this year. They're the ones I'll be buying.