Yes, paypal has actually been experiencing intermittent problems since 11/22.
http://www.paypaldev.org/topic.asp?TOPIC_ID=7678
They say it is resolved as of 9:30 PM CST. Be assured that your order has been recorded and we will work to get your keys to you as soon as possible. As it is now a holiday in the US, please be patient. We hope to have all keys regenerated by no later than Monday.
Thanks, and sorry for the inconvenience. It was completely out of our control.
-Joshua
IniCom Networks, Inc.