> Wireless connections can drop in and out and our vulnerable to being slowed down by increased demand. Not to mention that the centralized service itself may f

> Wireless connections can drop in and out and our vulnerable to being slowed down by increased demand. Not to mention that the centralized service itself may fail, due to catastrophic power failure, DOS attacks, or any number of other reasons. Not to mention how wireless connections themselves are vulnerable, jamming radio frequencies is easy and cheap.