I have been investigating the possibility of iPads for our school. We are just about to complete our state of the art music building and the main teaching room needs to be multifunctional, so lessons before lunch, possibly composing or practical of some element, then pack everything away for a large rehearsal during lunch, then setup again for more practical lessons.
As you can imagine, a room trying to be everything to everyone is getting quite difficult. Until the iPad came along. We could switch the iPad on within 30 seconds, as opposed to the 5-10 minutes for a laptop, it would last all day on one charge, whereas a laptop needs constant charging throughout the day even if you go for a higher capacity battery, this means more lessons using technology.
The Apps available for music are amazing and a lot cheaper than trying to do the same thing on a laptop. Let's not forget, we are teaching concepts here not technique to the lower school (years 7-9), so getting their finger technique correct on a piano or guitar isn't as important as getting them to understand the capability of instruments and how they make music, or harmonies etc.
We could install so many types of instruments on an iPad that we would not normally have in the building and it still takes up the same space as a laptop. Every student in the class could understand the concept of a guitar, harmonica, drums, piano and even bagpipes without having to buy or store them. This opens up a lot of possiblities.
Granted, iPads can be quirky at network browsing, printing etc, but there are apps available for all of that too. A laptop with Sebelius and a keyboard attached just doesn't cut it for me in this scenario and the laptops will end not being used. We are installing desktops with Sebelius and music keyboards in a dedicated GCSE/A Level room so these students can compose in the usual way, but I can even see these students using the iPads to go off to a quiet part of the building to figure out that tricky melody for their composition rather than slogging it out in front of a computer.
I have made a comparison of laptops and iPads to put to Governors, and iPads win in costs hands down and the prices are for the 32gb model, cases, screen protectors, trollies and all required apps (even apps for other depts such as Brushes).