Nokia could have succeeded in the smartphone market. They had the 770 since late 2005. But they were a typical corporation, conservative and plagued by internal politics. Bringing Elop on board, with his Windows agenda, didn't help either.
But Microsoft was too greedy with their licensing schemes and demanding too much adaptation from the hardware and chip manufacturers. You’d think they would adapt their OS and drivers, but no, you had to tape out new silicon for them. So they’ve lost the mobile OS market.
It feels like something like this may happen with the AI OS now. They are pushing hardware manufacturers to conform to their standards while Linux is adapting to what is available and working already.
Besides, WinCE PDAs were very much a power user / enthusiast device, with relatively few around. People who used them and thus were familiar with the old UI would be well aware that WP7 was completely different, and people that didn't use them weren't exposed to the old UI in the first place.
There are dozens of us !
I miss so many things besides the UI. seamless integration of Cortana with in-car bluetooth to read incoming SMS, live tiles, fantastic cameras in Nokia devices.