If you just start now on a new mobile OS, you're throwing money away.
The memory management of the new OS is substantially different.
One other difference the new OS has caused is in the stock camera.
I think more than a few months for a new OS.
Also, if everyone took the same stance then a new OS would never get any users.
Now that the covers are finally off, the scale of the new OS becomes clear.
The new OS will be released in the third quarter of this year.
The hardware and the new OS will sell the phone.
The general consensus seems to be this new OS is a disaster.
A lot of the above is to be expected with any new OS.