Windows 10 (Threshold) Changes to the Windows Command Prompt
blogs.msdn.com
blogs.msdn.com
Ah, discovered via an email thread that he also wrote remapkey (by Hirofumi "Hiro" Yamamoto) and his website was: http://hp.vector.co.jp/authors/VA000092/tools/ Yep, judging from that site, he works for Microsoft, and probably wishes he'd written less. ;-)
Seems this tool wasn't the only thing customizing cmd.exe for you, there was auto-complete, macros, and a bunch of other things with strange ways of enabling them through the registry: http://webcache.googleusercontent.com/search?q=cache:Ipz-ouR...
I can confirm that CustCon.exe, written in 1998, does indeed add CTRL+A as "beginning of line" to Windows 8, for instance, and so probably uses ... macros or registry? for that. It's too tiny to contain any DLLs like ConEmu and others.
Which makes me think we're not seeing new functionality here in cmd.exe, just some checkboxes for enabling existing functionality that's been buried for about 20 years.
Edit: Obviously copy and paste is new, as is re-sizing nicely, I suppose. The changes on paste also seems new. Opacity seems like something easy to expose, so ... it's a mix of new copy-paste functionality and quick wins, I suspect.