The dates for the Newcastle Maker Faire 2011 have been confirmed : 12 and 13 March 2011. I had a great time there in March 2010.
The participants I saw : iCHexapod, oomlaut, mbed…
.. kosbo.com, a rubiks cube solving robot, a soldering workshop for kids and many more things.
The Newcastle Makerfaire is part of Newcastle Science Festival
Makerfaire is pretty famous in the US and there have only been a few of them in Europe. The dates for the next one are finally confirmed on the Makerfaire UK site.