The first public demo in front of nearly 2,000 participants of LeWeb of Jack Dorsey's new startup Square will happen in Paris on Dec 9th at 0940. LeWeb will be streamed live with our awesome partner Ustream so you will be able to follow it in video as it happens.

(pic, TechCrunch's MG Siegler)

With Square, Jack wants to let anyone quickly and easily accept physical credit card payments from their mobile phone thanks to a little device that reads the credit card and attaches to the microphone jack. There is more details over at TechCrunch and also a video.

We wish the best to Jack and can't wait to have him on stage open the conference with us. See you in Paris, if you have not registered yet you might want to register real fast as we will be completely sold out very soon.