They now make an iPad 1 iPad 2, iPad 3 But you can not buy the iPad 1 from apple anymore.
About 100 million have been sold as of September 2012.
Apple released its first iPad on April 3, 2010. They also recently unveiled their new iPad 2 on March 2, 2011. The iPad 2 goes on sale March 11, 2011.
It depends how many apple makes as a company if their sell are up then there will be more Ipads.
73.5 million
About 20,000 iPads are sold every day in the US.
4
25 million ipads were sold in the first month
Billions of iPads are made every year.the exact number is to hard to figure out.
It depends on where.
No one knows how many iPads will be made now and in the future. It will depend on when Apple decides to stop making them, and how many are sold. As of now, about 100 million have be sold worldwide (Fall 2012).
3 in total
just about 70 schools in the us
yes
Sorry, No iPads do not support Qi
No, iPads do not have built in Qi support.
There has been no such published study.