The Greek Philosopher Heraclitus was fond of saying "the only constant is change" (actually he said "nothing endures but change" but let's not split hairs). He probably wasn't talking about meetups and get-togethers in London but this still fits rather well. Events come and go as their themes either go mainstream or fade. But some remain and London's #geomob is one of those.

Started in 2008 by fellow WhereCamp EU co-conspirator Chris Osborne, #geomob was conceived as London's answer to Silicon Valley's popular (and still running) WebMapSocial meetup group. After a brief hiatus in May 2010 when Chris hung up his hat and offered the event to anyone willing to spend the time and effort in running it, #geomob restarted in September of the same year, this time fed and watered by Ed Freyfogle and Vuk Trifkovic of Lokku, the people behind Nestoria and Open Cage Data. It's been going strong ever since.

Back in February of this year, at the height of the madness that was the Vaguely Rude Places Map, Ed Freyfogle from London's #geomob meetup got in touch and asked me to come and tell the story behind the map. This is that story.

And so last night, in the Chadwick Lecture Theatre in the basement of London's UCL, after listening to some amazing presentations on building a map of mobile cell tower coverage, of building a seismically powered alternative to GPS and a whole host of other great talks, I took my place on the podium and started where any good story needs to start ... at the beginning.

In November 2008 I was still working for Yahoo and a fledgling meetup event for people interested in maps, location, geo and mobile started up in London. It was, and still is, called GeoMob. I was at GeoMob's very first event, talking about Yahoo's Fire Eagle location brokering platform. Four years later and it was great to go back, see GeoMob still flourishing despite a brief hiatus in 2010, and meet up with a lot of old friends as well as meet some new ones.

And what an evening it was. Truly a veritable feast of maps. David Overton spoke about SplashMaps, his Kickstarter funded project to produce lightweight printable fabric maps for outdoors.

I didn't think it was possible to map happiness but apparently it is and George MacKerron showed how with the aptly entitled Mappiness project.

To paraphrase both Douglas Copland and The Smiths, Geomob, the highly successful mobile/geo/location/place fuelled meetup for geographers, both latent and professional is on hold. Possibly permanently. As Chris Osborne, the founder and organiser, said in an email to all members of the group:

After a wonderful couple of years doing geomob, and the people powered success that was WhereCampEU, I'm afraid to say that I am stepping down to make way for some new blood.

That does mean that there is an opportunity for one or more of you to step up and continue geomob in the spirit it started - free, non corporate, disrespectful and focused on people doing things.

Get in touch if you want to take on the mantle, until then geomob is on hiatus.

Its been a blast

With the Yahoo! Geo Technologies sponsored, London #geomob meetup coming up this week, this weekend I took a look at how many companies were actively using location within London. No easy task. After much web searching this weekend I took a trawl through those companies tagged as being in London in CrunchBase, the database of tech companies that TechCrunch operates.

Not strictly scientific but then again this is more about gauging a trend than being strictly empirical.