Android M's coolest hidden feature needs a lot of work

Last week, we brought you word of an incredibly cool hidden Android M feature: Multi-window support that will let you have two apps open at once side by side. However, Android Police has been playing around with this new feature and has found that Google has kept it hidden for a reason — namely, because it needs a lot more work. RELATED: 10 hidden Android M features Google didn't discuss in its I/O keynote “It’s worth mentioning that this is still very early in its development and is quite...