Has anyone successfully used an Office 2010 Pro Plus / Volume License (and possibly Standard) client to edit their Office 2010 docs within the browser on an on-premise SP2013 site (Foundation but hopefully same for Server)? Or does SP2013 Office Web Apps only accept Office 2013 clients (sound of sinking ship)?
Have to ask because couldn't find confirmation yet on otherwise good details at http://technet.microsoft.com/en-us/library/jj219456.aspx. And it turns out you now need (not like SP2010) a whole new server just for OWA 2013 - ie. can't be on the SP WFE, or even the seperate SQL Server, when the V host is already squeezed thanks the the 8GB need from Search.
Would like to know from a real admin who is running an SP2013 but the elephant in the room is that their users are mostly on Office 2010 (or even, gasp, 2007 - as Office 2003 is a definate no-no).