Nilson,
We don't currently have a date for the 0.8 release. It will be built on the latest stable Mozilla code base available at the time it is released. There are a couple of variables that will affect the release date:
1. How long it takes the developers to code the fixes and improvements we are targeting for 0.8
2. When Mozilla releases a stable code base for us to work on.
Just keep in mind that if Mozilla released 1.3 tomorrow, more likely than not, there would be some delay before we release our next release. Our developers need time to update the code and beta test it before we release publically. If you want to be involved in the development process, you can follow the discussions on the developers lists:
http://sourceforge.net/mailarchive/forum.php?forum_id=2617