Comment by afavour
I had a Nokia Symbian phone, the 7610. I loved how 'quirky' it was:
https://en.wikipedia.org/wiki/Nokia_7610#/media/File:Nokia76...
and I was able to download an NES emulator for it! I remember playing Mario 3 on my way to my first post-university job. I really felt like I was living in the future compared to the phones others had. And then Symbian just... never got better.
I was ambivalent about the MS purchase of Nokia but I was still optimistic about a lot of it. Nokia always made top-notch hardware but it was obvious from the outside that they just didn't have the software talent (the N900 was a wonderful device for the tech set but it had no mass market viability). I maintain that when it was released Windows Phone was the best mobile OS going. But Microsoft fumbled hard by reinventing the wheel with Windows Phone 8 and destroying an already emaciated App Store. Arguably they fumbled before they even released Windows Phone, spending $1bn on the Kin and then almost immediately nixing it:
https://en.wikipedia.org/wiki/Microsoft_Kin
Looking back at it all today... iOS is fine. Android is fine. But man do I wish we still had a couple of other viable competitors in there.
The N-series were great too, I loved both my N73 and later a N82, both with Gameboy emulators.
I also bought a Garmin license where I could install Garmin on my Symbian phone to do car navigation on my phone, this was at a time where most people had specific hardware for GPS navigation, now we're used to having apps on our phones, but it felt quite special back then!