[redwoods]

Any votes for Silicon Ditch? "Silicon Roundabout" is one name that has stuck for the tech cluster around the ugly traffic circle in the Old Street area of Shoreditch, East London. I think "Silicon Ditch" is catchier and maybe articulates the British penchant for self-deprecation better...

[petercooper]

Too similar/evocative of the existing "Silicon Fen" just 50 miles north.

[redwoods]

Yes but Silicon Ditch definitely evokes the grimey feel of Old Street. A founder of Huddle described Silicon Valley as Reading (UK) but with sun and palm trees. Even if you filled Old Street with sun and palm trees - it would still be grime - central (though I love working there).