Will the apps be downloaded wirelessly via wifi or will we have to connect to a PC?
The apps download wirelessly. It's not an Apple - the Win8/WinRT devices are all grown-up and can feed themselves.
Not even apple products need to be connected to a PC to download apps. OP is asking a lot of dumb easily searched questions.
...and you are giving an obnoxious response. If someone asks you a stupid question in person do you insult them too or is this just because you can hide behind the anonymity of the internet?