Everybody likes to beat this drum loud, but every time it ends up that guy had a loud hailer placed beside the drum
Oly did it when they launched EP2 (still slow), then EP3 ("worlds fastest *** " ) then came OMD (again 'FAST *** )
Panny followed suit in which case, they were better than Oly in that in the arena of m4/3 they never started off with a super slow AF m4/3 (like Oly did) , again with ***
Then we had Fuji X- PRO wow! its X and its PRO, well, AF really needed many ***
Then they promised firmware updates, and XE1's in between all this AF speed champ talk, but in the end, all failed to deliver consistently on many real use situations.
Now its just Sony's turn.
To be fair, AF speed is usually improved.
But in reality, they still often have issues in some real use situations.
*** = fine print