Given his outward support of other developers' using the Pull Down to Refresh mechanism, this is a defensive patent more than anything else.<p><a href="http://twitter.com/atebits/status/21665180962" rel="nofollow">http://twitter.com/atebits/status/21665180962</a><p><a href="http://twitter.com/atebits/status/21629390400" rel="nofollow">http://twitter.com/atebits/status/21629390400</a>
Filed 4/8/2010. I'm fairly confident that I used the pull-down refresh mechanic in other apps well before that, so these guys had better have some seriously good evidence that they were first to invent.<p>Then again, it's rather easy to be granted a patent. It's much harder to make it hold up in court. Still frustrating when app developers have to be afraid of implementing simple and obvious functionality like this for fear of being sued!