He zapped outta there, BUT he's contaminated now with *emotions*. Oooooooooo. Now he's off to unknowingly spread it to whatever remaining Daleks he can find...just like the Borg.
What did you think about the whole oh-look-Daleks-can-go-up-the-stairs-afterall part?
That was bit was done in the Tom Baker era (IIRC). Although, the effects weren't as good then. :-)
Sorry, it was in "Remembrance of the Daleks" with the 7th Doctor where we first see a Dalek ascend stairs. I thought it was in the Baker era at first, but I remembered that is was during the McCoy era.