Dragon,
I have had a few theme's customized for the 2.1 for a long time now, but can not release or eve fine tweak them until something move there.
But in any case I don't how ever those will be completely responsive, unless you do not use any mods or portals, and then still you may run into issue. I even maid a custom menu for the 2.1 .
Note that when I think deep into the mobile thing it looks like the Big Boys are monopolizing everything they can on the web, Many small business ave let alloy of people go because of, these guys bringing up the videos and or all media and content in the search engine sites so you don't have even visit the sites... So what hey! is going to happen even to the hobbyist type people like me that want to help people learn this stuff!
Too much control my friend. just madness... IMHO!
Not give up though someone needs to slow the roll some, on this stuff!
2.0.9 will be around for as long we can support it, and 2.1 gets out, I like very much, will take time for many to adapt to the changes, some I know are working portals and mod that will close the blocks when a mobile device is detected.
But like I mention, we/many are still moving forward daily, I feel we are being push out of site, the Big business!
Please note this only how I see it!
regards,
maxx