Study Guides

Hello all. Are their any study guides out for the CCVP yet? I cannot find them on amazon or cisco press. I do see plenty of books on VoIP, but all say they are not recommended as cert study guides. If there aren't, are their plans to write/release them soon?
Thank in advance
Thank in advance
Comments
Hopefully other can confirm and suggest books for the other two exams (642-432 CVOICE and 642-452 GWGK).