Calling is a book came recommended on the Mobile Read forums and had good ratings at Fictionwise. I found it a little disappointing. The concept was clever enough: a man discovers his old cell phone can call heaven, and drama ensues. But it was written in an odd narrative style: all telling, no showing. The man just narrates what happens. The result for me was a sort of distance from the story. I never quite bought into the characters as real people with real lives. The tiny details that make characters come alive for me---routines, descriptions, dialogue, names----just weren't there. And toward the end, it got a little preachy.
I did find it an interesting little read. But I don't know that I would shell out for it again, in hindsight.
I am currently not considering unsolicited ebooks. Sorry! I have a huge backlog to get through, and limited reading time. I keep an eye on the book blogs, so if I am interested in your title, you may hear from me. Keep checking this space for submission updates. I may open things up again once my backlog settles down a little.