Sanyo announces a digital voice recorder with 8GB of built-in memory dubbed Diply Talk ICR-PS390RM.

Sanyo is able to record 1,116 hours onto the 8GB storage with their new voice recorder. Sanyo claims that this is the world's longest recording capacity, at least for a dedicated small voice recorder that might hold true.
Other features of the Sanyo PCM and MP3 recording, PCM, MP3 and WMA-DRM10 playback support, USB2.0 and line-in. Measurements of the ICR-PS390RM are 34.2x119.7x13mm and the weight is 49g.
The new 8GB Sanyo Voice recorder goes on sale in Japan late November.
Via this Sanyo press-release (Japanese).

Sony also introduced two new digital stereo voice recorder that store in MP3 format. More details.