The M1 PMP has been talked about earlier regarding the Nvidia Tegra chip and now Samsung has confirmed that the M1sports the Tegra chip inside. Some of the specs include:

comes in 8 GB, 16GB and 32 GB
3.3-inch AMOLED touchscreen
T-DMB
E-Dictionary
Bluetooth
FM Radio
Voice recorder
DNSe 3.0
Text to Speech
integrated speakers
MP3 support as well as WMA, OGG, ASF, AAC, M4A, FLAC
Video support: WMV, DivX, Xvid, SWF,H.264, ASF, MPEG4
Image support: JPEG, BMP, PNG.

Unfortunately, no mention of the device having Wi-Fi or a web browser.

South Korea will soon see the M1 PMP and will come with EP390 earphones

via: Full M1 specs revealed, integrates Nvidia Tegra | Samsung Hub