correct, P90's are Single Coils BUT, don't sound the same (to me, anyways) as the typical strat style single coils. They're far more aggressive sounding, but they do sound pretty "stratty" when they're clean which is good. They're real diverse sounding, and rolling the tone knob around actually makes a huge difference in the sound of 'em. Then again, you gotta look at what your guitar is made out of as well.
That was the bridge pickup btw.