Library1=core > iCore
Library2=dateutils > DateUtils code module
Library3=ahlocale > doesn't exist or I don't know
Library4=gps > iLocation different from Android
Library5=astro > doesn't exist or I don't know
Library6=phone > doesn't exist Android specific, there is an iPhone library but completely different
Library7=animation > doesn't exist or I don't know
Library8=javaobject > doesn't exist Android specific, NativeObject does exist in B4i but is B4i specific and not compatible with Android.
Dim GPS1 As gps > Dim GPS1 As LocationManager
Dim Orientation As PhoneOrientation > look
HERE
Dim txtFile As TextWriter > I don't know
Private txtBox1 As EditText > TextField
Dim Rotation As Animation > I don't know
Private rbButton As RadioButton > doesn't exist
Dim pm As PackageManager > I don't know
Dim in As Intent > doesn't exist or I don't know
The answers above are according to my knowledge, perhaps I am missing some points.
As the operating systems are different many things depending on the OS are different.
You may have a look at the B4i Beginner's Guide.