Toshiba has today unveiled its long-rumoured Android 3.0 tablet, the Regza AT300, boasting a spec-sheet that is sure to give the rest of the Honeycomb crowd a serious run for its money.

The powerful device, set for a June launch in Japan, has an NVIDIA Tegra 2 1GHz dual-core, 1GB RAM and 16GB of internal storage, underneath a attractive shell.

The LED-backlit 10.1-inch screen boasts a resolution of 1280x900 and an Adaptive Display which promises better performance in sunlight.

There's also a 5-megapixel rear and a 2-megapixel front-facing camera as well as a HDMI-out and USB, mini USB and SD card compatibility as well as promising a 7-hour battery life.

On paper this looks like a real contender for the slew of Honeycomb tablets set for release later this year. According to the Japanese press release, it'll be reaching US and European markets shortly thereafter.

Let's hope it fairs better for Toshiba than the ill-fated Folio 100 tablet we saw and then didn't see last year.

Link: Toshiba (via CrunchGear)