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Nokia 7510 Supernova
Weight: 124 g
Dimensions: 92 x 46 x 17 mm
Display: Main QVGA 16 million color display/External monochrome 128×160 display (hidden when not in use)
Network: Quad-band GSM / EDGE
Memory: 27MB onboard memory; microSD support
Operating System: Symbian S40 (with active themes)
Camera: 2-mega pixel (no autofocus) camera with LED flash and 4x digital zoom; QCIF video recording at 15 FPS
Talktime: - 3 day standby and 300 hours of talktime
Internet: OSS internet browser
Connectivity: Bluetooth 2.0
FM radio with RDS
2.5 mm jack
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Nokia 7610 Supernova
Weight: 99 g
Dimensions: 98×48x15 mm
Display: QVGA 16 million color display
Network: Quad-band GSM/EDGE
Talktime: 5.4 days standby and 300 hours talktime
Storage: 64 MB of built in memory with microSD support
Operating System: S40 3rd edition
Camera: 3.2 mega pixel AF camera with LED flash and 8x digital zoom; VGA 30 FPS video recording
Bluetooth 2.0
FM radio with RDS

Nokia 7310s SuperNova
Network: GSM Triband (900 / 1800 / 1900 MHz)
Dimension: 106.5 x 45.4 x 11.95mm
Weight: 80.17 grams
Display: 2-inch QVGA TFT Screen, 16M colors
S40 UI
EDGE / GPRS
20MB built in memory
microSD card slot
Able to play MP3/AAC/AAC+/WMA/eAAC+
Java
Bluetooth
micro USB
RDS FM Radio
3.5 mm audio jack

There's no word on expected pricing or availability since all the three handsets have not been officially announced by Nokia yet.