Yeah Android might have copied IOS. But why not. Android would have been developed any way sooner or later. It is based on Linux. And that is open sourced.
Android was close to being released, but it was going to be much more like a BlackBerry, with a keyboard focus. They delayed the release to retool it somewhat with more of a touch focus.
“somewhat” is doing a lot of work here. I mean, they didn’t re-write the kernel, but you can google example of the UI pre and post iPhone announcement.