It amazes me such a great phone is only on one carrier. (Though I'm not surprised Verizon doesn't have it.)
What exactly is the multitasking problem? I didn't notice anything myself just playing around with the device, but then I wasn't looking for it.
Anything glaring that doesn't work in CM10, or is it good enough to use as the main OS?
CM10 works great and fixes all the issues with sense (like multi tasking). Data/SMS/Voice all work on it along with google now, the only thing I think that isn't working is the Video mode on the camera.
Only problem is that I think you have to be S-OFF though, which means you cant have taken the latest OTA update which includes a new bootloader.
There are ways around the multitasking issues in sense by editing build.prop.
There is a line you can add to prevent the OS from unloading specific apps and also from unloading the launcher.
It will basically stop sense reloading and I put skype and other apps that need to be on constantly to work into my build.prop so they never get unloaded.