We plain to have a network of 40 atm's at the end of 2015.
Here you can check the available locations for July 2015:
http://www.bitchain.eu/cajero-bitcoins-madrid/ We are open to listen any good location around the world, so please send me a private message for that.
Since last tuesday we have the two best location in terms of people volume, Gran via 2 (Has 16 millions visitors per year) and in plaça catalunya El triangle (Has 12 millions of visitors each year).
For developers we will offer in July an open API for develope anything to our ATM's, because we will offer multiple applications to our network, not only buy and sale bitcoins.
So we are very excited about this ambitious project and we hope to count with the bitcoin community support.
J. Fenoy
CTO
www.bitchain.es