TEKL  It would be nice if Subler could embed the subtitle tracks with Transparency "Composition", so the videos will play in Front Row. Otherwise the screen is black. It would also be nice to have a way to correct existing videos.  
(Version 0.9.3)

NED SCOTT  softsubs on my ipod touch? yes please. This also cuts down on the conversion time for video since I don't have to burn the subs into the video track via QT and Perian (Perian allows QT to see subs, then QT does the actual conversion. QT is very slow at MP4/h.264 encoding). Now I just use iSquint or HandBreak then Subler to mux the srt file.

Looking for a Mac converter for .a s s (macupdate word filter won't let me say the file extension without spaces) to .srt, however. Please reply if you know of one.  
(Version 0.9.2)

SILVERDR  This app is a brilliant example of good OSS. Need to add soft subtitles? Here you go. Need to remove unwanted audio tracks, which you never use for anything except eating up storage space? Here you go. Want to cut or change the chapters? Yes, you guessed it! The user interface is pretty basic but functional and uncluttered. Kudos to the creators.  
(Version 0.9a2)