If you are looking for a way to print from your iPad, it can be a little tricky trying to find a printer that does the job. AirPrint Activator from NetPuting is a great way for getting this done fairly easily. It's not ideal for large scale (Schools, Corporations, etc), but for single classroom or home it works brilliantly. We trialed it at ACEC Perth 2012 and it worked without any issues.