Well that was first! Merely 48 hours have passed since Apple announced the New iPad. The third generation Apple tablet was widely anticipated. The fact that pre-order stock of all models of New iPad have sold out so quickly show that regardless of the criticism, people still want to be the first to get their hands on New iPad.
Pre-orders of the New iPad start the very same day it was announced. The shipments will begin from March 16. However pre-order stock is limited. Those lucky customers who were able to pre-order in the first few hours will have their new devices delivered on March 16. If one were to go online and order a New iPad right now, regardless of the colour or model, it will not get shipped until March 19.
Apple Retail Stores in select countries will have the New iPad in stock on March 16. So if you're in one of those countries, you can bear through the unimaginable lines and get a new tablet.