Qwiki - Find and Read Articles on Wikipedia from your Mac menu bar!
QuickMark - QuickMark makes everything possible.
Endless - Random and amazing Wikipedia articles.
Barcode & QR Code Scanner - A free app which allow to read and generate barcodes for Android.
Wikipedia - Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
ZXing - Barcode Scanner for Android