The triple play is the convergence of data, voice, and television (IPTV) across a single pipe: Wi-Fi's in-home dominance of data and increasingly voice and IPTV (with proprietary extensions) will be challenged, ABI Research says, by the latest versions of three standards that work over coax, electrical wiring, and phone wiring. ABI Research says that by 2011, over 45 million gateways will offer wired-based distribution of data, voice, and video. (The quadruple play, by the way, adds mobile voice.)