BBC NEWS | Technology | Weaving the net into your world

..........Urban Tapestries.

The team behind it, Alice Angus and Giles Lane from a company called Proboscis, want to explore the ways we link virtual and physical spaces and how mobile technologies allow us to create what they call 'place-based content'.

In practice this means giving people a specially-equipped mobile phone that allows them to wander around central London and leave virtual notes for other people to read by writing them on the phone and then 'sticking' them to a building.

It works because the position of each phone is constantly tracked so when a note is written the place can be noted - when someone else goes to the same place, they can read the note.

Imagine the potential for gluing these two different approaches together.

Painting pointers

In a world of weblogs and personal websites, what could be more useful than wandering around a museum or gallery and being able to find out what other visitors think of the painting you are looking at?

Or perhaps being told that the picture behind you is actually more interesting?