I already got the sp3 (i5/8g/256g), but it is mainly being used my wife to replace the old laptop. I would like to buy another one. Just out of curiosity, checked the surface pro product timeline: Surface Pro I: revealed November 2012, on sale January 2013 Surface Pro II: revealed in September 2013, on sale October 2013 Surface Pro III: revealed May 2014, on sale June 2014* http://www.slashgear.com/surface-pro-3-may-break-release-timeline-14329009/ sp2 came 10 months after sp1, sp3 came 8 months after sp2. so, will sp4 come 6-7 months after sp3 due to smart devices iterate fater and faster? which means sp4 may come at around December 2014 or January 2015, on sale February 2015, considering the fact that Broadwell -Core M is released and shipped to major vendors (check out heaps of new Core M based products released in the recent a few days at IFA).