7% on ICS is better than 0% on windows phone 8, though I think both OS's needed this huge change. Windows phone 8 from what I remember is, for simplicity sake, merging with windows 8. Devs could build an app for both windows 8 and windows phone 8. Android needed a more unified UI and rewrote a lot of android.
4.1 is still an incremental update. They'll probably have Android 5.0 sometime in november.
100% is better than 7%
WP7
100% on NoDo
100% on 7.5
100% on 7.8
....
WP8
100% first update
100% second update
100% thrid update
....
WP9
100% first update
100% second update
100% thrid update
and so on...