Humans Invent reports on Phone Arts, an international collaborative project experimenting using only the mobile phone as the medium to create unique compositions. I think they are creating some interesting work, Phil Barker of Humans Invent is not so convinced:

The results are inevitably varied - with some pieces of artwork looking like they belong in a modern art gallery, and others looking more like a doodle in Microsoft Paint. Unfortunately, despite the promising premise, one recurring theme from the Phone Art contributions is a lack of overall detail in most of the pieces - a lot of the creations are based on colours or movement, highlighting the limitations of a relatively small screen and finger-based input. Some of the pieces do show a lot more evidence of thought and imagination, however, with a surprising amount of depth and detail.

Phone Arts.