Oooh I'm studying abroad in Lund right now. Which hack spaces do you go to and when? I'd love to meet some other devs and get away for a weekend to work.
I believe there are none in Lund because one time this girl came in to Stapelbäddsparken with her father and said that they couldn't find these places in Lund.
So if you want to hack hardware I suggest hack space called Fabriken at Stapelbäddsparken in Malmö.
If you want to hack software I suggest hack space Bageriet at Volframsgatan (http://forskningsavd.se) or Hack space at Kontrapunkt (Norra Grängesbergsgatan 26b).
Subscribe to the MOSIG mailing list and the Forskningsavd. mailing list and you would have gotten the last announcement for a hackerspace around Värnhem.
So that makes Kontrapunkt, Bageriet at Volframsgatan, Fabriken at Stapelbäddsparken and this 4th near Värnhem.
Of course, I believe there aren't enough nerds for 4 hackspaces but it's still pretty cool. :)
The 4th is (http://www.recompile.se/). We aren't very active yet - still trying to find the right hook to get people interested. We aim to provide a professional-style software development environment with somewhat of a free software activism slant.
We do currently cooperate with the Filurum (https://www.facebook.com/filurum) gifted children group to provide a meeting place every week - in fact, it's what I'm doing later today.
I'm quite proud of the IT scene in Sweden.
Edit: To clarify, Malmö is smaller than both Göteborg and Stockholm.