I think there is absolutely no chance the phone version will be released at the same time as the PC version. Have people already forgotten the carriers, OEM slackness and the general slowness of update rollouts which is now the hallmark of WP? If anything I would bet the phone version wont be seen before Holiday 2015.
Can we get windows phone 10 on our phones such as lumia625 and other??
Very easily done when the only manufacturer of devices is well apple! If you have ever coded, which I doubt, you would know random bugs can pop up on devices even when they have never shown up on dozens of other devices. This takes time and a lot of testing. If you make everything in house its quite easy.I think people have forgotten about the Apple way - release it all at once!