As TMAPI develops and extends to provide support for querying (using tolog or some other query language), TM4J will move to implementing TMAPI natively rather than using wrappers. Of course, such a major change will require a major update to all of the TM4J internals, so this is not going to occur before the 1.0 release of TM4J, however, it is being considered as one of the goals of the 2.0 roadmap.

Therefore it would be a good idea for developers to at least take a look at TMAPI in order to get a feel for the shape of things to come with TM4J. Not only that, but using TMAPI makes your code more portable to enable you to write applications that run on implementations other than TM4J!