Pre-order is available starting today through Microsoft Stores, (microsoftstore.com) and select retailers, and it will be on sale beginning May 5,, with availability in 26 markets by May 7.
You can see the tech specs here: http://www.microsoftstore.com/store/msusa/en_US/pdp/productID.314885500?icid=BM_FAS_Hero_S3
There will be 4 models going from 10.8” 1920x1080 res screen 2 GB RAM 64GB storage (don’t forget, some of that will be OS), to 12” 4 GB RAM 128 GB storage.
You can read more about it in Panos Panay’s blog here: http://blog.surface.com/2015/03/announcing-surface-3/?ocid=Social_surface_tw_2015-03-31_video_Themis_SizzleVideo_organic&wt.mc_id=smm_tw_surface_2015-03-31_SizzleVideo…with additional links on that page.