Apple has been slow to support the myriad of LTE networks used by cell carriers around the globe. The company only supported Verizon and AT&T in the U.S., and several Canadian carriers when the LTE iPad launched earlier this year, leading to complaints over Apple's marketing of the device in a number of countries.
Today, during the announcement of the fourth-generation iPad, Apple briefly displayed the above slide showcasing a number of domestic and international carriers that should eventually support LTE data on the new iPad and the iPad mini, and potentially the iPhone 5 as well.
Currently, the iPhone 5 supports LTE networks on 17 carriers in 9 countries. For U.S. consumers, the new iPad and the mini will now support Sprint's LTE network. Additionally, Apple has posted a new page showing the 19 carriers in 9 countries that the iPad mini and 4th-gen iPad will support at launch.