There is already Office for WP, and just like Music and Video apps, it sucks it is integrated in the OS. and it's FREE and it comes with every windows phone shipped today.
I hope you understand that, or try to understand and stop making thread that something that should be obvious by today.
Windows 10 IS going to merge Phone and Desktop, end. it will merge Store, APIs, and features and blabla.
do you understand what does that mean?
it's obvious Microsoft can't just make office a separated app today, because the point of Windows 10 is to have one app for every MS platform. so I am sure that includes office! why would they waste their time with WP office, if it will be removed and probably replaced by a better Windows 10 app? they already announced it it will be available for 2015.
and yes 2015 is still far away from today, but that's the problem Microsoft had by not merging sooner the OSs, of course it was a hard work and they are making it happen. and today we have an almost full featured office on ARM tablets, and a decent office for WP. but it works... but like I said, Win10 will change how things are today. they will probably do what they have done with some apps. that means, they would removed it from the OS and put it as separated apps, and update them often.
But they can't do that today, because sadly, the integrated into OS, doesn't work as Microsoft wishes because carriers and countries phone regulators block the updates and they can't be released the same day. yeah, my phone unlocked and unbranded still have to wait for my country to approve the updates.
But again, Windows 10 is the key Microsoft is going to pursuit, and nothing you complain today about, and people wish. will come true until Windows 10 is finished and we have it on our phones and tablets and desktop computers. do you think next office will be integrated with the OS? nah. it won't. but it will be a nice universal app that will be updated as it should today.
again, we already have office for WP for FREE, arm tablets for FREE, and intel/amd tablets and desktop, and web for free as well. so I don't know what you are complaining. yeah it sucks Office not being a separated app, doesn't let it to be updated. but that will change.
So explain me again, what are you complaining about? did you forget you have office on your phone? or you didn't get to read the articles about Windows 10 being on every platform and merging stuff. again, it's obvious by now, that those office touch apps announced for 2015 will be available as universal app for Desktop and Phone and tablets. but if you can't wait or can't understand, I am sure you can switch platform and be happy with office there, even if there is already office for WP from day one.