I guess a good option for those running Linux, but not going to attract any Windows or Mac users.
Polishing the UI and running apps through wine is not going to get any Windows or Mac users to give Linux a look. It's way too late for that. Having started using Linux since the Slackware/X windows days, I haven't really used Linux on daily bases since Windows 7. I kinda like just plugging some piece of hardware in, and it just works, instead of messing around with some config files and permissions etc... Also I really like having first class apps an install away. No matter how much the UI of Linux is polished, they still haven't solved those two issues and never will at this point IMO. Well Android has in a away, but not on desktop hardware for now. Boy I just wished BeOS took off years ago, now that really was a move in the correct direction :(.