This book has a striking similarity with Blood Music by Greg Bear or more correctly, Blood Music is more similar to this. But tell you what, putting all the philosophical things aside, I didn't like Blood Music (2 stars) and I didn't like this book even.
Call it over-expectation or whatever you like, but this "collective consciousness and then finally oneness into being something above the comprehension of simple human mind" (singularity) didn't ring true with me. The characters are as flat as they come. I liked 2001: A Space Odyssey by Clarke (One of my favorite science fiction novels), but this is not my cup of tea, I guess.