Pioneer made the official N-50 announcement today. Here are the vitals (from Pioneer):
Networking: AirPlay-compatible, DLNA 1.5, vTuner Internet Radio, Ethernet, Wireless LAN and Bluetooth ready (requires separate devices)
Inputs: Asynchronous USB DAC (32-bit/192kHz), S/PDIF (Coax & Toslink), Ethernet/LAN input, front panel USB for Mass storage/iPod/iPhone/iPad digital
Outputs: RCA, S/PDIF (Coax & Toslink)
Other: “Made for iPad, iPhone and iPod”, iPhone or Android remote apps, 2.5” Full-Color LCD Display, included remote and more...
File Formats Supported: WAV (24-bit/192khz), FLAC (24-bit/192khz), MP3 (320kbps), WMA (320kbps), AAC (320kbps) and Ogg Vorbis (320kbps).