Let me try to get this across plainly...
1) We would LOVE to have a mobile skin.
2) vB has made that possibility slim to none.
3) While other sites may use this or may use that, it would still be at best a coin toss if we were to try to implement the same. The database is in rough enough shape as-is and it cannot bear anything making any kind of major changes until it has been taken care of.
4) We will continue to revisit this whenever we can. Once the database is fixed we can transplant it to the test site and see what we can get to work. But not until then.
Back when we did the member survey a mobile skin was one of the things people said they wanted. That has not been forgotten, nor will it be swept aside... but until it can be done without the probability of screwing the site/database it ain't happening. Mak has championed this from day one and I know he won't let it rest, but he and I see what is going on behind the scenes and he knows that it can't be done right now.