I already tried to implement it a couple of times but I always failed. This is an implementation problem with the way I am handling the playlist management during playback. I have to rely on the playlist being static. The way iOS handles searches is that it changes the playlist and that messes up the preselection of the next track really big time. I am afraid in the current version 2 I see no way to add this feature.
As you might know, version 2.10 will be the last feature update for version 2. After that I will start with version 3 which will be a complete rewrite where I can get rid of the current limitations.