i assume the quote actually means that Luke Ebbin is working on all of the following, and not that Richie is writing for this project, take a look.

http://en.wikipedia.org/wiki/Luke_Ebbin

Currently Ebbin is writing and producing with Richie Sambora for his upcoming solo record, Dirty Harry's Songs from the Edge, Australian singer Shannon Noll's latest release on Sony BMG, and Australian singer Renee Cassar's debut release on Island Australia.