Nope, that was already confirmed as mere FUD by evleaks & similar rumour merchants, what they'll do is stick with their universal apps program, which won't be (mostly) realised until ~Win 9 & WP 9, but is already well advanced. The closest they'll get to an ACL, is perhaps reverse engineering GFS (google framework services) & integrating that into WP, extremely unlikely they'll touch an ACL with a 10ft pole, makes sense for much smaller entities like Sailfish(Jolla), not MS & their pre-existing plans.