It's about awareness
Well done to the Oil Rig Clingers for raising awareness of all this as the public carrot and stick is a good way to sharpen the manufacturers pencils. They really need to add HTC, though: who buys Phillips these days?!?
Yes, over packaging is still a serious and widely prevalent issue, but it's far from just HP who is guilty of this. Most things we buy have far too much packaging. We can all think of an example.
Reducing it comes very far down the agenda for many firms, though, as many firms environmental units focus more on reducing the biggest bogeyman - the CO2 emissions from electricity - as it's sexier and more easily/publicly measurable.
The better angle on reducing packaging is the cost incentive for a business. Cardboard and plastic is starting to getting exponentially more expensive because of the water, oil, electricity, gas and shipping fuel needed to make it. But it's quicker and easier to use less of it, than, say, electricity in your operations.
Let's face it, not many Westerners really get the green thing, so chase the monetary savings by using less of everything and the planet saving thang will be a nice bonus.
Beer, 'coz it's Friday.