Solo, as 3DR's blog post on the matter makes clear, is "based on the open source ArduPilot software" launched by Chris Anderson (a one-time Wired scribe) and Jordi Munoz in 2007. While ArduPilot is still going today, OpenSolo – as new versions of Solo will henceforth be known – is being absorbed by that project. While 3DR's Solo-branded quadcopter was generally well regarded from a technical standpoint by the drone user community, aggressive expansion tactics by DJI and a less-than-stellar product launch saw the American firm effectively crash late last year, as Forbes reported. At its height even Richard "Beardy" Branson, of Virgin infamy, had invested in 3DR. Earlier this week 3DR said it is integrating its Site Scan software with DJI's own enterprise offering, in a gesture seen as surrendering one of its last remaining scraps to the Chinese behemoth.