Stiktu is a new idea from the folks behind the Layar augmented reality
app. It lets you to take pictures, or scans, of objects and add your own
comments, stickers, images and sketches over the top to express how you
feel about the item or location. You can post these online and anyone
who scans the item at a future date will see your handy work layered
over the top of it.
Read full Stiktu Android App review