I would just like to correct what I see as a misrepresentation (or misunderstanding) of the traditional Christian position. I will speak for Catholics.
Catholics do not believe that God “stopped talking to His children”. We do not believe that prophets ceased, or that He does not provide us with loving guidance, or that He is not involved in human history.
Catholics believe that all public revelation is complete. Pope Benedict XVI defined public revelation nicely-"…the revealing action of God directed to humanity as a whole…", and “It is called ‘Revelation’ because in it God gradually made himself known to men, to the point of becoming man himself, in order to draw to himself the whole world and unite it with himself through his Incarnate Son, Jesus Christ. It is not a matter therefore of [merely] intellectual communication, but of a life-giving process in which God comes to meet man.”"
So, public revelation is God revealing Himself to man, culminating in God incarnate, Jesus Christ, on earth, and all that is necessary for salvation. We believe that all that is necessary for salvation, the basic “tools” for salvation, was already revealed to us. We call this the “deposit of Faith”. Now, even though this Deposit, this public revelation, has already been given once and for all, we as a Church can and do still come to deeper understandings, through the inspiration of the Holy Spirit, of that Deposit. Thus, we may come to a deeper understanding of the nature of God (i.e. the Trinitarian doctrines), what happens in the Eucharist, etc. This deeper understanding of the Deposit, a clarification of our beliefs, happens in the Catholic Church in two ways: through the inspiration of the Pope by the Holy Spirit (Papal Infallibility), and the inspiration of the College of Bishops as a whole, in a Council.
Catholics believe that there are still prophets and prophetesses (yes, there have been female prophets in Catholicism, just like in the Bible). If we read about the lives of many canonized saints of the Church, we will see many writings on revelations received from angels, Heavenly saints, and God. Many of these revelations are very important in the Catholic Church, and have been approved by Church authorities as actual spiritual encounters to be known by the Church as a whole.
So what is the difference between that and public revelation? Public revelation is what is necessary for salvation. Again, all that is necessary for salvation has already been revealed to us, and finds its human/divine expression in Jesus Christ. Private revelations may help us on our way to salvation, and may give us future knowledge about various events, however they are not required for us to believe to attain salvation. Many important private revelations from Heaven have been incorporated into the Church’s spiritual life.
So, Catholics do not believe that God has stopped talking to His children. We do not believe that prophets ceased (what we do believe is that there is no need for prophets to reveal things required for salvation, i.e. public revelation), or that God no longer provides loving guidance. We believe that God is active in the lives of believers. God is active through His Church. All revelation required for salvation has been revealed and is complete. God can inspire through the Spirit the Pope and the College of Bishops to help in clarifying and defining the Deposit of Faith. God talks to us individually through the Holy Spirit, as well as through Scripture. Heaven has revealed various messages throughout the history of the Church as proof that Catholics do not believe that revelation (as a whole) from God has ceased.