According to this blog I came across with while searching google for Skip Beat! drama CDs, there has been actually… 2 drama CD releases now (if you disregard the very first one before the anime came out, of course). The newest one was just released today. (Luckily I was online on my twitter else I probably would not have known)
EDIT: Update on the 2nd Drama CD release.
よぞらの★。 