I am wondering how the library implementation will go for B4A? Will it be the same as in B4PPC?
It is pretty similar to Basic4ppc. Generally speaking you write Java code (with Eclipse) which latter get compiled together with the user application.
Basic4android IDE is a .Net application. It cannot read the Java class files. So there is a special tool that used from Eclipse to write all the required meta data to an XML file.
This XML is then read by the IDE.
That includes the help messages you see in the IDE.
Note that almost all keywords are actually part of the "Core" library.
More details about libraries development will be available.
Also, any ideas on what libraries we will see in the final release?
Currently there are HTTP and SQL libraries.
The following libraries will also be included: GPS, Phone / Hardware, Binary streams and maybe others as well.