BlackBerry-maker Research In Motion Inc. (RIM) has officially unveiled the new BlackBerry Storm 2, the successor of RIM’s very first touch-screen based device.

It is expected RIM will be announcing availability in the coming days. The phone should head to Verizon first in the U.S. and later in the Europe from Vodafone.

The Storm 2 will feature basic enhancements compared to the first-generation Storm. RIM has enhanced the SureType text-entry to only electronic-based, and there will now be no moving parts. The memory has also been doubled to 256MB of flash memory, and there is now 2GB of on board storage. The device features GPS, a 3.2MP camera, and now includes 802.11 b/g WiFi.

The first generation of the BlackBerry Storm has sold over 1 million units worldwide.

According to reviews already posted of the Storm 2, the device seems more fine-tuned and sleek, but does not seem to offer anything really groundbreaking compared to existing BlackBerry handsets. The new OS 5.0 seems to be very responsive and the lag issues of the previous Storm seem to have been addressed which is surely to please users.