Your announcement that there is going to be a DAC function is really nice; hopefully you can get it going with the Note II. I know that you stated some Note II work with the E07k, but I never could get my combination going. However the E07k did get relegated to my HTPC where it does a wonderful job under OpenSuse 12.3. If the DAC functionality works on my phone you may lose out on a sale...of the E18. But then again, with as much travel as I have to take it may get purchased none the less just so that I always have something with some juice in the battery.
I also use your E11 and the RC-SE1. Both great products. The only thing I would like to request is that when you do release the E18 please include a right angle micro -> whatever the E18 uses. The L9 works really well as does the stock cable that comes with the E11. Hard to find OTG cables with those connectors.
Once again thanks for all the work that FiiO is undertaking for the community; especially for us who are more value oriented.