I'd like to know who's actually organising it. The only contact information is for someone who works for Edinburgh city council?
My 2p worth is that Scotland (Glasgow at least) is a nice place to live. The weather isn't too bad and not having London's relentless rent's and property market hanging over your head is a nice change.
Seriously though, Scotland has a lot to offer in terms of reasonable property prices, shorter commutes (vs London), quieter roads (main Edinburgh/Glasgow route, the M8, aside) and the developer job market is buoyant.
Also it seems to me most of the jobs coming up in Scotland are in Edinburgh rather than Glasgow but that might just be me
Edinburgh seems to be doing really well for startups this past few years, beyond the retail banks and life/pensions players, which is great to see. Glasgow has some big financials that seem to disproportionately dominate the job market - not a bad thing, lots of interesting and (in places) deep technical work to be had, but obviously it's not to everyone's taste culturally.