The phone app has been individually booting people off the service since July, but the last vestiges of Hangouts, the web app, will be shut down today.Hangout's next of kin, Google Chat, should have all of your messages and contacts automatically imported by now, but the new service is a mere shadow of the original plan for Hangouts.Both have their understandable reasons for chasing messaging, but splitting the Google user base across two incompatible products makes it tough for either project to gain any traction.Besides those two big projects, there's also still Google Voice and a bunch of siloed messaging services in apps like Google Photos and Google Pay.Google would probably have a decent footing in messaging today if it just kept updating and investing in Hangouts."