Looking at his comments on the Trinity page...

http://www.wowinterface.com/download...tyBars2.0.html

there should be a smooth upgrade from Trinity to Macaroon (my bold in the quoted comments below)...
At this point, Macaroon is just about as functional as Trinity Bars. Almost every Trinity Bars feature is in Macaroon and the configuration "feel" is almost identical but with a superior, easier GUI.

Come release, I will decide what I will do then. As of right now, the "spirit and soul" of Trinity Bars exists in Macaroon, but with a much better framework. The troublesome functions are gone, and everything works like a well-oiled machine.

Really, at this point, it is just a name. The only major thing Macaroon does not have are buttons that can be set to "spell", "item" or "slot" and it's own skinning engine. However, I have found that those buttons are really redundant when a button can be set to "macro" and perform the same function (buttons that are not based on action ID's). And I am seeing how well Button Facade works out as a skinning engine.

I have already done an experiment where I renamed the files and replaced every instance of "Macaroon" with "Trinity", and everything worked perfectly. So, again really it is just a name difference

Either way I go on the name, there will have to be a conversion process from Trinity Bars 2.0 to the new bar addon. Since the data is so similar, making a "converter" addon should not be an issue. Even if there was no Macaroon, I would be working on Trinity Bars 3.0 and there would have to be an upgrade process anyhow, as WoW 3.0 changes how buttons/bars are handled with a much improved framework.

So, Macaroon is for all intents and purposes, is Trinity Bars 3.0. I just have to decide on a name
I dread each Tuesday I am working as hard as I can to get a viable 3.0 version of a bar addon out. And, yes, I am working on the settings import and hopefully it is done before the patch hits.