According to an unconfirmed report, Chinese manufacturer Quanta Computer will build and ship over 1 million BlackBerry PlayBook tablets for RIM in the first quarter of 2011. DigiTimes cites industry sources in reporting the numbers, and also states that Quanta will ship between 700,000 and 800,000 Motorola XOOM tablets in Q1. The report claims RIM will launch the Wi-Fi-only version of the PlayBook in March, with 3G and 4G versions to follow in the second quarter. The report also claims, however, that Motorola will begin offering an “LTE version” of the XOOM tablet in the second quarter of this year after launching the 3G model in Q1. This assertion is inaccurate according to Motorola, which said its XOOM tablet would only gain 4G LTE connectivity using a forthcoming modem attachment. BGR published a lengthy hands-on video demonstration of the BlackBerry PlayBook in December, and we played with it again at CES in early January. The QNX-based tablet managed to impress us on both occasions. We also checked out the Android Honeycomb-powered Motorola XOOM tablet at CES and it was quite impressive as well.