i) Camera360 Ultimate by PinGuo Inc.

Camera 360 Ultimate by PinGuo Inc. is now for Free. No limit, no ads, all free. Camera360 V3.0 is now updated to all functions free version.

Market: https://market.android.com/details?id=vStudio.Android.Camera360


ii) Transparent Screen by Sascha Affolter

As mentioned by developer, “This app gives you the opportunity to use your phone as usual, while being able to see the image of your camera transparently on the entire screen.” It is a very interesting and fun app that android users should try. Below are some screenshots from my Xperia Arc:

Market: https://market.android.com/details?id=botweb.transparent.screen&feature=search_result#?t=W251bGwsMSwxLDEsImJvdHdlYi50cmFuc3BhcmVudC5zY3JlZW4iXQ..


iii) QR Droid Private by DroidLa

QR CODE: It’s the ‘evolution’ of normal barcodes. They can hold more information and are more flexible. QR codes can be used to share Contact information, links, geo-locations and more.

QR Droid Private is an Android app that able to Scan and Create QR code.

Market: https://market.android.com/details?id=la.droid.qr.priva&feature=search_result


iv) IP Webcam by Pas

As mentioned by developer, “Turn your phone into a wireless camera! Supports Windows, Mac and Linux. Turns your phone into a network camera with multiple viewing options. View your camera on any platform with VLC player or web browser.” I test it with Windows Desktop(browser) and Xperia Arc, it works smoothly.

Market: https://market.android.com/details?id=com.pas.webcam&feature=search_result#?t=W251bGwsMSwxLDEsImNvbS5wYXMud2ViY2FtIl0.


v) Google Goggles by Google Inc.

Goggles uses image recognition technology to recognize objects and return relevant search results. Identifies products, famous landmarks, storefronts, artwork, and popular images found online.

Market: https://market.android.com/details?id=com.google.android.apps.unveil&feature=search_result

It took Wikipedia(Wikimedia Foundation) a long time to finally bring an official app for Android users. Now you can search the entire Wikipedia database on your Android device. The application also available to read about places and things near you through phone’s Coarse(Network-Based) location or Fine(GPS) location.

Features:

Market Link: https://market.android.com/details?id=org.wikipedia&feature=search_result&rdid=org.wikipedia&rdot=1