That is part of his strategy, by publishing the ideas in his blog the ideas are now in the public domain and therefore not patentable. IBM used to publish a quarterly magazine with details of inventions they didn't think worthy of patenting so that others then could not patent them:
Typewriting has a visceral pleasure to it (correction tape and all) that no MacBook will ever come close to. I think this appeal to the visceral is why sometimes I will just pick up my notepad or find a napkin to brainstorm and avoid the iDevices.
That is really impressive. Has anything been actually made yet?
And I really miss a rate system and/or a Best Inventions section. The "Feasible inventions" is not a complete replacement because it's ordered by time, not rate.
He gives all these ideas away for free, seems to have fun writing them, while making a point about IP in general ( http://iotd.patrickandrews.com/about/ ).