There are all sorts of threads on this forum that are about the rumored iPhone 5... nothing is known for sure yet, but it seems that the most people believe that Apple will announce something about the next iPhone in August or September.
well there is a conference on the 19th July but it likely to be just about lion OsX and mac airs but who knows! steve might announce a new iphone... but rumours say either August or september for release, so we will have to wait and see...