First seen at the CES 2011, ViewSonic’s ViewPad 4 appears again at the MWC 2011. The ViewPad 4 is an Android smartphone with a 4.1-inch 800×480 capacitive touchscreen, a 5 Megapixel main camera and a 0.3 Megapixel front camera. It is powered by 1GHz processor with 1GB of RAM. The demo unit is running Android 2.2 and ViewSonic is going to ship the phone with latest version Android when it is launched.

Hands-on videos after the break:

Sonim has just announced at the MWC 2011 the new XP3300 Force ultra-rugged MRM-ready mobile phone that provides the longest talk time in the world. The phone meets Sonim’s Rugged Performance Standards, surpassing the military specifications for ruggedness. The IP-68 rated, water and dust proof handset can survive in wastewater 2 meters deep, 2 meter drop onto concrete. It is also certified against salt, fog, humidity, transport shock, and thermal shock and operates in temperatures ranging from -20 degrees C to +55 degrees C. The phone has a 2-inch display protected by 1.5mm thick Corning Gorilla Glass lens for scratch and shock resistance.

Along with the DataTraveler 4000, Kingston also announced the DataTraveler Vault – Privacy Managed (DTVPM) enterprise-grade secure USB flash drive. The drive offers corporate customers centralized control of all USB activity and must be managed by the BlockMaster SafeConsole drive management system. With SafeConsole, administrators can enable specific extended DTVP-M features, configure password and device policies, remotely reset passwords, activate audit for compliance and file restriction options to control what file types may be saved to the drive.

Kingston announced two new portable USB data security solutions, the DataTraveler 4000 (DT4000) and the DataTraveler Vault – Privacy Managed (DTVPM) secure USB flash drives. The DT4000 is a FIPS 140-2 Level 2 certified (for the entire cryptographic module) USB flash drive with 256-bit AES hardware-based encryption in CBC mode. The drive locks down after 10 intrusion attempts and encryption key is destroyed.

Along with Desire S, Incredible S, Wildfire S smartphones and two Facebook phones, HTC also introduces the FLYER 7-inch Android tablet. Unlike the Motorola XOOM, LG G-Slate/Optimus Pad, Samsung Galaxy Tab 10.1 that use Android 3.0 Honeycomb OS, the FLYER uses Android 2.4 with the tablet-optimized HTC Sense UI. The 7-inch tablet also includes the HTC Scribe technology and a magic pen that make it easy and natural to take notes, sign contracts, draw pictures, or even write on a web page or photo.

HTC ChaCha

While INQ’s Cloud Touch and Cloud Q are the very first Facebook-focused smartphones with a social homescreen, HTC’s newly announced ChaCha and Salsa take a step further by offering one-touch Facebook access with a dedicated Facebook button for one-touch access to the key functions of the Facebook service that are integrated throughout the HTC Sense experience. Both phones run Android 2.3.3 Gingerbread.

Building on the success of the Wildfire, HTC brings the new Widlfire S to the MWC 2011, which is one of HTC’s smallest phones ever – measuring just 10.13cm long and 5.94cm wide. Powered by 600MHz processor with 512MB RAM and 512MB ROM, the phone will be shipped with Android 2.4 with HTC Sense.

Along with the Desire S, HTC also introduces the new Incredible S Android smartphone with a large 4-inch 800×480 Super LCD display. The phone also comes with a 8 Megapixel camera with auto focus, LED flash and 720p HD video recording, and a 1.3 Megapixel front-facing camera for video calling. The Incredible S has a contoured body and four capacitive buttons.

At the MWC last year, HTC brought us the HTC Desire, this year at the MWC 2011, HTC announced the new Desire S Android phone.  Compare to the Desire, the new Desire S has no really big changes. HTC gives it a new all-black sleek unibody design with a premium aluminum finish, and bumps the internal storage to 1.1GB and RAM to 768MB. HTC also adds 720p HD video recording capability and a front camera for video chat.  Physical buttons are also replaced by touch-sensitive buttons.

SRS Labs ships its iWOW 3D audio enhancement adapter designed specially for iPad, iPhone and iPod to deliver high fidelity audio …