[joshvm]

This is unlikely to be how the fruit pickers of the future work (though I get your point). Using a robotic arm like this is an extremely expensive way of solving the problem. That's ignoring the technical challenges like accurate localisation of fruit in small clusters, not damaging crop, dealing with occlusions from leaves, etc.

My personal opinion, having worked a little on this problem, is that it's very much like autonomous driving. Getting 90% of the job done is fairly straightforward, but getting that final 10% to make a system commercially viable will take years. Commercial growers don't (yet) have any pressure on labour - it's too readily available and too cheap.

http://www.agrobot.com/ solves this in quite a neat way. Rather than grasping the fruit, they just scoop up each berry in a cup with a blade on one side which severs the stem. This means you don't care about the precise shape of the berry either.