Costly but has Apple approved the name?
The container data center as stated has been around for some time and its benefits are pretty well understood and this is an interesting commitment by HP to the concept however it does seem that the price of 1.5 million per container sans any actual equipment seems a bit high but this is probably just the list price and subject to discount once you fill it with HP goodies.
But the real problem as we all know is that the letter "i" now is brought to us by Apple and the word "POD" in any form or usage now according to Apple belongs to them and we can all easily see how a multi-ton 20 foot long container can be confused with a hand held portable media device.