A:AnswerThat is exactly how I use it--on an HP laptop all day long! It is an excellent antenna. I do all sorts of Internet work but very little gaming, and I am delighted with it.
A:AnswerIt plugs into a USB port on the computer. There is no way to plug it into an IPhone. Besides the IPhone has it own wi-fi capabilities. You need a connection cord from your IPhone to the projector.
A:AnswerIt is an antenna--its sole purpose is to grab the signal, so it should work. There are no drivers (it is not an app)--just plug it in and it works.
A:AnswerIt will work on a desktop system just the same, I use mine that way. Your limiting factor would probably be the Athlon as far as speed, etc. Theoretically it should work fine though.