Siri "Your Personal Assistant"

I found this funny(NSFW -sweary) video about Siri:

and I didn’t realise that Siri was an independant app. purchased by Apple (seeing this post is originally from 2009), that you could have on any iPhone before the 4S was released:
http://www.building43.com/videos/2010/08/10/behind-the-scenes-scoop-on-siris-funding-and-sale-to-apple-part-i/

Jobs always could see the potential of something (eg: the gui and mouse) but seeing how Apple has more money than Croesus, will their strategy be to just buy stuff? They bought iTunes and recently a few mapping companies:

So what is the implication for product design? buying patents? Buying kickstarter and taking what they like?