You're almost right. Commands atof, rtos and read are not on the list, but there are few functions added in the last release of list module (2016):
COND
VL-REMOVE
VL-REMOVE-IF
VL-REMOVE-NTH
LAST
REVERSE
MEMBER
TBLNEXT
LOGAND
LOGIOR
~ (bitwise not operator)
ATOI
ITOA
Also you can call ssget "X" with filter. For example you can select just ARC entities in drawing:
(SETQ ss (SSGET "X" (list '(0 . "ARC")))
There is good example which have new functions, and that was my anwser to one croatian user, so it is on bosnian version of this forum (just scroll down to copy lisp function bcount). It's about counting all blocks in drawing
http://www.babacad.com/forum/index.php?topic=38.0