1 and 2 are both done, along with lots of other related enhancements in v1.1. Our solution for the first request is a little hacky, but effective - emplode works out the track length at sync time and stores it in the database.

For 3, the track title does scroll in line mode, but I guess you mean you want it to scroll on the full info (and maybe now&next) modes as well. That could be fiddly, but would be cool.

Rob