Windows phone 7.8. & Windows phone 8 difference / new features

[tayfelix]

Hi, today, I went to the windows phone 7.5 news to check for any changes of the site. There are 2 videos, and I went to see the windows phone 7.8 (start screen ad). It looks like there is some minor difference between the windows phone 8 ad.
1. The windows phone 7.8 still use the old marketplace logo
2. New Xbox music and videos.
3. New SkyDrive (maybe)
4. New Games app?
5. NewLockscreen bottom bar (phone..message noti) is the same as windows phone 8

I'm not really sure if this is really what windows phone 7.8 change will be.
Do not take this seriously.
I'm just saying what I've noticed between the 2 videos.