Ubiquity is an experiment project being done at Mozilla Labs where developers are trying to connect the common internet users through a language that will help to do common web based task in a more easier way than ever.
Currently Ubiquity is available as an add-on for firefox to download . After installing this add-on anyone can access its features by pressing a short key (Space+alt). This add-on can let the user to share map, video, text, phone number , image directly thorough mail (default mail service). The video embedded here clearly explain the scope and prospects of Ubquity experiment.
PS : Mozilla Labs