The Icarus table is not currently a supported device. I would suggest talking to the manufacturer.
Thank You for your answer! In the meantime the manufacturer has changed the specification of the device. The t701 tablet compatibility with ADE is no longer readable, but there is a solution of my problem:
"To read DRM protected content you might need specific applications, depending on the source of the book. One possible solution is to download the TXTR application from the Android market. You will need to register with them, but it will enable you to access DRM protected content on your tablet and other devices."
I've tried it, and it's really works, the TXTR software can authorize the tablet device with my Adobe account!
Anyway Adobe plans the ADE compatibility with the Icarus t701?
That's a question for Icarus, not for Adobe. Glad it worked out for you though.