What Smartphone OS do you prefer, and what smartphone do you currently own?

I had an android phone for a while and thought it was a piece of crap. It was buggy, crashed a lot, didn't properly close apps and even when I did close them, it relaunched apps that I didn't want it to launch on the boot of the phone. I stop short of saying Android is pure crap, but I wasn't impressed. Let's say Android has potential, but I'm not sure I'd buy another Android device just now.

Now, I don't have an iPhone, but I have an iPod Touch and I've used the iPad. Very impressive. I really like the interface.

My current phone is a blackberry by Nokia, and I am happy that it doesn't have a touchscreen. It's simple but I like it. My android phone was always doing stuff when it touched my cheek. Annoying as hell.

Previously I owned a phone with Windows Mobile and another with the Palm OS. Both were actually the same model phone, but I think I actually liked Windows Mobile better than the Palm OS. Note that I am not referring to the current Windows Phone operating system.

Android on my HYC Hero :)

Went from a Tracfone to the iPhone, I like the system it runs on, no issues aside from that it cannot do flash. (Which some say would run slow and be useless anyway)

Blackberry for me. I have a beta version of OS 6 on my Bold 2 and it's the best thing ever. I hate touchscreen phones.

Windows mobile, love the windows phone 7, but i don't currently own one :(

I have droid x2 love it and blackberry is made by RIM AND the os is called blackberry os 6 i think is latest nokia i believe is symbian os

Android most definitely. iOS is just too simple and WP7 isn't quite there yet. I have the LG Optimus V