Will the new iPad be world ready?
Yes.
(It's a &quot;world iPad&quot; for both the AT&amp;T and Verizon model.)
Whether a device functions worldwide for a specific wireless standard depends on the frequency bands that it supports.
E.g. The new iPad supports LTE, but only the frequency bands 700 MHz and 2100 MHz which are not used outside the US.
The iPhone 4S has been called a world phone, because it supports all the frequency band used for GSM worldwide:

850, 900, 1800, 1900 MHz

The new iPad supports the same GSM frequency bands for both the AT&amp;T and Verizon model. Therefore it's a &quot;world iPad&quot;.
Of course you need a SIM-tray, to make use of this. Like the iPhone, the iPad has a Micro-SIM card tray.